This document discusses torque and angular acceleration. It defines torque as the product of the force applied and the distance from the axis of rotation. A longer lever arm is helpful for rotating objects because it increases the torque. The document provides examples of calculating torque for a biceps muscle exerting force on the lower arm, a wrench being pulled by a force, and two forces applied to a meter stick.
1. Explain turning effect of force,with examples of daily life
2. Define Moment of force
3. Express Moment of force with proper unit
4. Solve simple problems based on formula for pressure
5. Define Pressure
6. Express pressure in proper units
7. Solve simple Problems based on formula pressure
8. Explanation of Pressure exerted by atmosphere
1. Explain turning effect of force,with examples of daily life
2. Define Moment of force
3. Express Moment of force with proper unit
4. Solve simple problems based on formula for pressure
5. Define Pressure
6. Express pressure in proper units
7. Solve simple Problems based on formula pressure
8. Explanation of Pressure exerted by atmosphere
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The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
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Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
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2024.06.01 Introducing a competency framework for languag learning materials ...
torque (1).pptx
1.
2. Point at which all other points on the object
rotate around
During motion the CM will move in the same
path that a simple particle would move if
subjected by the same force
Objects supported at their center of mass will
remain balanced
6. In order to make an object start rotating
about an axis, a force is required
However, not only the amount of force
applied but also the position from the axis to
which it is applied is important in
determining the amount of rotation (angular
acceleration
Distance from axis is called the Lever Arm
8. Combination of amount of force and distance
from axis is called Torque (τ)
A torque is necessary in order to provide
angular acceleration
τ = rF r- dist from axis
Units - N m
In order to use this equation, the force must
be perpendicular to the axis of rotation
9. A biceps muscle exerts a vertical force on the
lower arm as shown. Calculate the torque
acting on the lower arm if the muscle is
attached 5.0 cm from the elbow.
10. A wrench is pulled by a force of 30 N at an
angle of 30° with the axis and a distance of
15cm from its pivot end. What torque is
acting on it?
11. Two forces (FB = 20N and FA = 30N) are
applied to a meterstick which can rotate
about its left end. FB is applied perpendicular
at the midpoint. FA is exerted at the endpoint
at an angle of 30o. Which exerts the greater
force?
