FOCUS POINTS:
Explain how balanced and unbalanced forces are related to motion.
Describe friction and identify the factors that determine the friction force between two surfaces.
FOCUS POINTS:
Explain how balanced and unbalanced forces are related to motion.
Describe friction and identify the factors that determine the friction force between two surfaces.
Part b1)Mass (kg)Velocity (ms)Force (N)Acceleration (ms2)Time to.docxherbertwilson5999
Part b1)Mass (kg)Velocity (m/s)Force (N)Acceleration (m/s2)Time to come to rest (s)stopping distance (m)
Lab 4--Part b1)
An object with a mass 'm' is moving with an initial speed 'v'and is acted on by a single force ‘F’ in the opposite direction of its motion. Use Excel to determine how long it will take the object to come to rest and how far the object travels until it stops..
i) If the mass is doubled, what is the effect on the time?, on the stopping distance?
ii) If the initial velocity is doubled, what is the effect on the time?, on the stopping distance
input: mass, initial velocity, force
output: acceleration, time to come to rest, stopping distance
Part b2)Mass (kg)Fx (N)Fy (N)ax (m/s2)ay (m/s2)2000050000100000time (s)vx(m/s)vy(m/s)v(m/s)x(m)y(m)d (m)00.511.522.533.544.555.566.577.588.599.510
Lab 4--Part b2)
A rocket ship, with mass m=40,000kg, and engines mounted perpendicularly in the x and y directions, fires both rockets simultaneously. The engine oriented in the x-direction fires for 3s and shuts off. The engine oriented in the y-direction fires for 7s and shuts off. The force from the engine in the x-direction is 50,000N and the force from the engine in the y-direction is 100,000N. Make a scatter plot of the y-position of each particle as a function of the x-position, showing the trajectory of the rocket.
Use Excel to determine the following:
i) While the engines are firing, what is the acceleration of the rocket in the x and y directions?
ii) After 7s, what is the velocity of the rocket in the x and y directions?
iii) After 7s, what is the speed of the rocket?
iv) After 7s, how far has the rocket travelled in the x-direction? How far has it travelled in the y-direction?, After 10 s?
v) After 7s, what is the displacement of the rocket? After 10 s? Is the displacement of the rocket the same as the distance travelled? Explain.
vi) If the mass of the rocket is doubled, what happens to the displacement?
Output: ax, ay, vx, vy, x, y, d
Rocket Trajectory
x
y
Part a1)Mass (kg)Force (N)Acceleration (m/s2)105010100205020100
Lab 4--Part a1)
Use Excel to determine the acceleration for an object with mass 'm' being pulled by a constant,
horizontal force (F) on a flat, frictionless surface.
i) What happens to the acceleration if the magnitude of the force doubles?
ii) What happens to the acceleration if the mass of the object doubles?
iii) What happens to the acceleration if both the mass and the force are doubled?
Input: mass and force
Output: acceleration
Part a2)Mass (kg)Angle (degrees)μkμsf_s(max)f_kF_Wsin(q)Acceleration (m/s2)Accelerating or Stationary?400.20.5450.20.54100.20.54150.20.54200.20.54250.20.54260.20.54270.20.54280.20.54290.20.54300.20.54350.20.54400.20.54450.20.54500.20.510500.20.54900.20.5
Lab 4--Part a2)
Use Excel to determine the acceleration for an object with mass 'm' sliding down a surface inclined at an angle θ (between 0 and 90 degrees) above the horizontal. The surfac.
Part b1)Mass (kg)Velocity (ms)Force (N)Acceleration (ms2)Time to.docxherbertwilson5999
Part b1)Mass (kg)Velocity (m/s)Force (N)Acceleration (m/s2)Time to come to rest (s)stopping distance (m)
Lab 4--Part b1)
An object with a mass 'm' is moving with an initial speed 'v'and is acted on by a single force ‘F’ in the opposite direction of its motion. Use Excel to determine how long it will take the object to come to rest and how far the object travels until it stops..
i) If the mass is doubled, what is the effect on the time?, on the stopping distance?
ii) If the initial velocity is doubled, what is the effect on the time?, on the stopping distance
input: mass, initial velocity, force
output: acceleration, time to come to rest, stopping distance
Part b2)Mass (kg)Fx (N)Fy (N)ax (m/s2)ay (m/s2)2000050000100000time (s)vx(m/s)vy(m/s)v(m/s)x(m)y(m)d (m)00.511.522.533.544.555.566.577.588.599.510
Lab 4--Part b2)
A rocket ship, with mass m=40,000kg, and engines mounted perpendicularly in the x and y directions, fires both rockets simultaneously. The engine oriented in the x-direction fires for 3s and shuts off. The engine oriented in the y-direction fires for 7s and shuts off. The force from the engine in the x-direction is 50,000N and the force from the engine in the y-direction is 100,000N. Make a scatter plot of the y-position of each particle as a function of the x-position, showing the trajectory of the rocket.
Use Excel to determine the following:
i) While the engines are firing, what is the acceleration of the rocket in the x and y directions?
ii) After 7s, what is the velocity of the rocket in the x and y directions?
iii) After 7s, what is the speed of the rocket?
iv) After 7s, how far has the rocket travelled in the x-direction? How far has it travelled in the y-direction?, After 10 s?
v) After 7s, what is the displacement of the rocket? After 10 s? Is the displacement of the rocket the same as the distance travelled? Explain.
vi) If the mass of the rocket is doubled, what happens to the displacement?
Output: ax, ay, vx, vy, x, y, d
Rocket Trajectory
x
y
Part a1)Mass (kg)Force (N)Acceleration (m/s2)105010100205020100
Lab 4--Part a1)
Use Excel to determine the acceleration for an object with mass 'm' being pulled by a constant,
horizontal force (F) on a flat, frictionless surface.
i) What happens to the acceleration if the magnitude of the force doubles?
ii) What happens to the acceleration if the mass of the object doubles?
iii) What happens to the acceleration if both the mass and the force are doubled?
Input: mass and force
Output: acceleration
Part a2)Mass (kg)Angle (degrees)μkμsf_s(max)f_kF_Wsin(q)Acceleration (m/s2)Accelerating or Stationary?400.20.5450.20.54100.20.54150.20.54200.20.54250.20.54260.20.54270.20.54280.20.54290.20.54300.20.54350.20.54400.20.54450.20.54500.20.510500.20.54900.20.5
Lab 4--Part a2)
Use Excel to determine the acceleration for an object with mass 'm' sliding down a surface inclined at an angle θ (between 0 and 90 degrees) above the horizontal. The surfac.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
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The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Normal Labour/ Stages of Labour/ Mechanism of LabourWasim Ak
Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks
1. How do objects move?
Do all items fall at the same speed?
Learn the answers to these and more…
Partnership for Environmental Education and Rural Health (PEER)
http://peer.tamu.edu
Texas A&M University
October 20, 2008
2. A force is a push or pull in a specific direction.
Forces can applied in the same or opposite
direction.
More than one force can be applied to an
object at the same time.
We are interested in the NET force applied.
Net force = Combination of ALL forces acting on
an object
The unit for measuring force is the Newton
(N). [Named after Isaac Newton]
3. PUSH
20 N
PULL
10 N
The NET force = 20 N + 10 N = 30 N to the right
Force should always include MAGNITUDE and DIRECTION!!
30 N
4. PUSH
20 N
PUSH
10 N
The NET force = 20 N - 10 N = 10 N to the right
Force should always include MAGNITUDE and DIRECTION!!
10 N
5. PUSH
20 N
PUSH
20 N
The NET force = 20 N - 20 N = 0 N to the right
Force should always include MAGNITUDE and DIRECTION!!
0 N
6. A force can start an object at rest in motion.
What does ‘at rest’ mean?
Forces can change the shape of an object.
Forces can have no effect at all on an object.
7. Force has SIZE (magnitude) and DIRECTION.
Force is measured with a SPRING scale (not a
mass balance).
Units are in NEWTONS (N) named after
Sir Isaac Newton.
SPRING SCALES
8. Weight is a measurement of gravitational force
on an object.
Weight does NOT equal mass!
How do we measure mass?
An object’s weight depends on the force of
gravity at a given location.
Compare the Earth and the moon?
Why do astronauts ‘float’ in space?
![ A force is a push or pull in a specific direction.
Forces can applied in the same or opposite
direction.
More than one force can be applied to an
object at the same time.
We are interested in the NET force applied.
Net force = Combination of ALL forces acting on
an object
The unit for measuring force is the Newton
(N). [Named after Isaac Newton]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)