Chapter 03Kinematics of Linear Motion(Basics)Lec-11 Learning Objectives Review Concept of Scalar and Vector Distance and Displacement Speed and Velocity Home Task Scalar QuantitiesThe physical quantities, which are completely specified by their magnitude only, are called scalar quantities. For example, mass, time, distance, speed, work, energy, temperature, charge etc. Vector QuantitiesThe physical quantities, which are completely specified by their magnitude and direction both, are known as vector quantities. For example, displacement, velocity acceleration, force, momentum, torque etc. DistanceA Scalar Physical quantity which is defined as the length between any two points. DisplacementA Vector Physical Quantity defined as the shortest distance between two points. SpeedThe speed is the ratio of the distance travelled by the body to the time taken for the travel.It is a scalar quantity. Mathematically it is written as v=푆/푡Where v= speed, S= total distance & t= time taken Example.A motor cyclist covers 150 m in 10 seconds. Find the speed of the motor cyclistData.S= 150mt=10secv=?Solution. v=푆/푡 Home Task Write the Definitions of scalar, vector, distance, displacement, speed and its problems Thank You For Your Cooperation You can find this presentation on Slideshare.com “Basics Kinematics (Scalar Vector)”

1. Chapter 03
Kinematics of Linear
Motion
(Basics)
Lec-11

2. Learning Objectives
• Review
• Concept of Scalar and Vector
• Distance and Displacement
• Speed and Velocity
• Home Task

8. Scalar Quantities
The physical quantities,
which are completely
specified by their
magnitude only, are
called scalar quantities.
For example, mass, time,
distance, speed, work,
energy, temperature,

9. Vector Quantities
The physical quantities,
which are completely
specified by their
magnitude and direction
both, are known as vector
quantities. For example,
displacement, velocity
acceleration, force,

10. Scalar Quantities Vector Quantities
1. They have only magnitude
and no direction
2. They have both magnitude
and direction.
2. Scalar Quantities are one
dimensional
2. Vector Quantities are two
dimensional or more.
3. They can be added,
subtracted and multiplied
simply by arithmetic rules
3.They are added subtracted
and multiplied using
geometric and trigonometric
rules
4. Examples of Scalar
quantities are mass, time,
distance, temperature etc
4. Examples of Vector
quantities are displacement,
acceleration, speed, force

11. Distance
A Scalar Physical quantity which is defined as
the length between any two points.

12. Displacement
A Vector Physical Quantity defined as the
shortest distance between two points.

13. Speed
The speed is the ratio of the distance travelled by
the body to the time taken for the travel.
It is a scalar quantity. Mathematically it is written
as v =
𝑆
𝑡
Where v= speed, S= total distance & t= time

14. Example.
A motor cyclist covers 150 m in 10 seconds.
Find the speed of the motor cyclist
Data.
S= 150m
t=10sec
v=?
Solution. v =
𝑆
𝑡

15. Home Task
• Write the Definitions of scalar,
vector, distance, displacement,
speed and its problems

16. Thank You For Your
Cooperation
You can find this presentation on Slideshare.com “Basics
Kinematics (Scalar Vector)”