Question 117: Properties of Matter

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 kgs
$$-$$1
and at a speed of 10 ms
$$-$$1
. Then, the initial acceleration of the block, in ms
$$-$$2
, will be :

Accepted Answer

F = $$ho$$ v
2
a
$$\Rightarrow$$ 10 $$	imes$$ 1 = 2 $$	imes$$ acceleration
$$\Rightarrow$$ Acc. = 5 m/s
2

Answer

3

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6

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5

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4

Properties of Matter

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 :

Choose the correct answer: