Question

2 stones A& B are dropped from a multistorey building A is dropped from 100m after some times B is dropped from height of 50m both of them reach the earth at same time will they have equal velocity while reaching the ground

Answer 1

No, because stone A has been dropped from 100m so its velocity will be more than the velocity of stone B as the gravity has forced it more and its acceleration would be more than that of velocity of stone B.

Answer 2

Answer:

Explanation:

For the stone A, height h = 100 m, g = 10 m/s 2

Velocity on reaching the ground is, v 2 = u 2 + 2as

=> v 2 = 0 + 2(10)(100)

=> v = 44.7 m/s

For the stone B, height h = 50 m, g = 10 m/s 2

Velocity on reaching the ground is, v 2 = u 2 + 2as

=> v 2 = 0 + 2(10)(50)

=> v = 31.6 m/s

Thus, the velocities of the stone are not same when they reach the ground.