question_answer

Two bodies of different masses has been released from the top of tower. One is thrown in horizontal direction while other is dropped, then which is reaching the ground first?

A)  The body which has been thrown horizontally

B)  The body which has been dropped

C)  Both   are   reaching   the   ground simultaneously

D)  Depends on the velocity with which the 1st body has been projected horizontally

Correct Answer: C

Solution :

Since vertical displacement is same, as well as initial velocity in vertical downward direction is zero for both the bodies,            So,    \[h=\frac{gt_{1}^{2}}{2}\](for horizon throwing)            \[h=\frac{gt_{2}^{2}}{2}\] (for dropping) \[\therefore \] \[{{t}_{1}}={{t}_{2}}\]