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(B) When a ball is thrown upward and returns to the same point:$1$. Distance is the total path length covered,which is $2h$ (where $h$ is the maximum

Vedclass · Accepted Answer

$b$ and $c$

Vedclass · Answer

(B) When a ball is thrown upward and returns to the same point:$1$. Distance is the total path length covered,which is $2h$ (where $h$ is the maximum height). Thus,distance cannot be zero. Statement $(a)$ is incorrect.$2$. Displacement is the change in position. Since the final position is the same as the initial position,displacement is $0$. Statement $(b)$ is correct.$3$. Average velocity is defined as $	ext{Total Displacement} / 	ext{Total Time}$. Since displacement is $0$,average velocity is $0$. Statement $(c)$ is correct.$4$. Throughout the motion,the ball is under the influence of gravity,so its acceleration is constant at $g \approx 9.8 \ m/s^2$ downwards. It is not zero. Statement $(d)$ is incorrect.Therefore,statements $(b)$ and $(c)$ are correct.

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