JEE Main Physics question

Two bodies are projected from a roof with the same speed in different directions. If air resistance is not taken into account, then

(A)They reach the ground with the same magnitude of momenta, if bodies have same masses
(B)They reach the ground with the same kinetic energy
(C)They reach the ground with the same speedCorrect
(D)Both (B) and (C) are correct

Answer: (C)

Solution

By energy conservation (per unit mass, ), since both bodies start with the same speed and fall the same height under

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Question ID VK-158634