06:25
Practice Problem in Physics for the JEE Main and Advanced
Pick the correct statements:
(a) Two stones are dropped from the same point after an interval of 1 sec. If $g$ is $10 \mathrm{~ms}^{-2}$, then the separation alter 3 scconds of the release of first ball is $25 \mathrm{~m}$
(b) A ball projected up with a velocity $v$ reaches a point $P$ in its path at $t_{1}$ and $t_{2} \mathrm{sec}$. The height of point $P$ above the ground is $\frac{1}{2} g t_{1} t_{2}$.
(c) A ball projected up with velocity $v$ reaches a point $P$ in its paths at $t_{1}$ and $t_{2}$ sec. Then, $v-\frac{1}{2} g\left(t_{1} \mid t_{2}\right)$
(d) 'The acceleration of a body thrown vertically upwards is $g$ at the highest point.