A block of metal weighing 2 kg is resting on a frictionless plane (as shown in figure). It is struck by a jet releasing water at a rate of 1 kg s - 1 and at a speed of 10 m s - 1 . Then, the initial acceleration of the block, in m s - 2 , will be

Question

A block of metal weighing 2 kg is resting on a frictionless plane (as shown in figure). It is struck by a jet releasing water at a rate of 1 kg s - 1 and at a speed of 10 m s - 1 . Then, the initial acceleration of the block, in m s - 2 , will be, 3, 6, 5, 4

MARKS App · Accepted Answer

Let velocity of water jet be v . So, force applied is F = Δ p Δ t = ∆ m v Δ t ⇒ m a = ∆ m v Δ t Acceleration of block, a = 1 × 10 2 a = 5 m s - 2

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