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Translational and Rotational Motion Concepts

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Translational and Rotational Motion Concepts

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Questions and Answers

What is an example of translational motion?

An object rotating about its center of mass

Motion of a rectangular wooden block down an inclined plane (correct)

A force changing the shape of a body

A spinning top

Which unit is used to measure force in the S.I. system?

Kgf

Newton (correct)

Dyne

What is torque a measure of?

Gravitational forces

Contact forces

Rotational tendency of a force (correct)

Translational motion

Which type of force requires direct contact between two objects?

Contact force Signup and view all the answers

In which type of motion does a rigid body rotate about its center of mass?

Rotational motion Signup and view all the answers

What is torque?

The product of force with the perpendicular distance of force from the point of rotation Signup and view all the answers

How is torque mathematically defined?

Torque = Force × distance from the point of rotation Signup and view all the answers

In what unit is torque measured?

Newton metre Signup and view all the answers

What is the principle of moments?

The sum of anti-clockwise moments is equal to the sum of clockwise moments Signup and view all the answers

What condition must be satisfied for a body to be in translatory motion equilibrium?

Net force acting on the body is zero Signup and view all the answers