Practice Book for KVPY Aptitude Test - Stream SA Physics>Chapter 3 - Relative Motion>Exercise 2>Q 1

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A ball is thrown vertically upwards with a certain initial velocity, assume that there is no resistance due to air. Among the graphs below, the graph that is not an appropriate representation of the motion of the ball is

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Important Questions on Relative Motion

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Practice Book for KVPY Aptitude Test - Stream SA Physics>Chapter 3 - Relative Motion>Exercise 2>Q 2

A girl standing at point $P$ on a beach wishes to reach a point $Q$ in the sea as quickly as possible. She can run at $6 km h^{- 1}$ on the beach and swim at $4 km h^{- 1}$ in the sea. She should take the path

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Practice Book for KVPY Aptitude Test - Stream SA Physics>Chapter 3 - Relative Motion>Exercise 2>Q 3

A boat crossing a river moves with a velocity

v

relative to still water. The river is flowing with a velocity

\frac{v}{2}

with respect to the bank. The angle with respect to the flow direction with which the boat should move to minimise the drift is

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Practice Book for KVPY Aptitude Test - Stream SA Physics>Chapter 3 - Relative Motion>Exercise 2>Q 4

Two stones of mass

m_{1}

and

m_{2}

(such that

m_{1} > m_{2}

) are dropped

Δ t

time apart from the same height towards the ground. At a later time t the difference in their speed is

Δ V

and their mutual separation is

Δ S

. While both stones are in flight