JEE MAIN - Physics (2022 - 29th June Morning Shift - No. 10)
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 kgs$$-$$1 and at a speed of 10 ms$$-$$1. Then, the initial acceleration of the block, in ms$$-$$2, will be :
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Explanation
F = $$\rho$$ v2a
$$\Rightarrow$$ 10 $$\times$$ 1 = 2 $$\times$$ acceleration
$$\Rightarrow$$ Acc. = 5 m/s2
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