Embibe Experts Solutions for Chapter: Relative Motion, Exercise 2: Exercise 2

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

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 $6 \mathrm{km} {\mathrm{h}}^{-1}$ on the beach and swim at $4 \mathrm{km} {\mathrm{h}}^{-1}$ in the sea. She should take the path

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

Two stones of mass $m_1$ and $m_2$ (such that $m_1>m_2$) are dropped $\mathrm{\Delta }t$ time apart from the same height towards the ground. At a later time t the difference in their speed is $\mathrm{\Delta }V$ and their mutual separation is $\mathrm{\Delta }S$. While both stones are in flight