When a body starts with zero velocity at a certain height from the ground and falls under the influence of gravity is called free fall. Simply we can say that the free fall is a situation when a body is moving towards the centre of the earth under the influence of gravity.

Physics>Chapter 3 - Motion in a Plane>Can you recall?>Q 4

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What is the difference between uniform and non-uniform motion?

Important Questions on Motion in a Plane

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IMPORTANT

Physics>Chapter 3 - Motion in a Plane>Exercises>Q 1

An object thrown from a moving bus is on example of

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Physics>Chapter 3 - Motion in a Plane>Exercises>Q 1

For a particle having a uniform circular motion, which of the following is constant

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Physics>Chapter 3 - Motion in a Plane>Exercises>Q 1

The bob of a conical pendulum undergoes

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Physics>Chapter 3 - Motion in a Plane>Exercises>Q 1

For uniform acceleration in rectilinear motion, which of the following is not correct?

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Physics>Chapter 3 - Motion in a Plane>Exercises>Q 1

If three particles

A

,

B

and

C

are having velocities

\vec{v_{A}}, \vec{v_{B}} a n d \vec{v_{C}}

which of the following formula gives the relative velocity of

A

with respect to

B

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Physics>Chapter 3 - Motion in a Plane>Exercises>Q 2

Separate the following in groups of scalar and vectors: velocity, speed, displacement, work done, force, power, energy, acceleration, electric charge, angular velocity.

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Physics>Chapter 3 - Motion in a Plane>Exercises>Q 2

Define average velocity and instantaneous velocity. When are they same?

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IMPORTANT

Physics>Chapter 3 - Motion in a Plane>Exercises>Q 2

Define free fall.