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3 Mechanics

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Question 153

Two blocks A A\,A and BBB, of masses 3 kg and 5 kg respectively, are connected by a light inextensible string and move on a smooth horizontal floor. A force of magnitude P P\,P N acts on A A\,A at 30∘ 30^\circ\,30∘ above the horizontal. The blocks accelerate in the direction of the horizontal component of this force at 2 m s−2^{-2}−2.

a.

Find the tension in the string.

[2]
b.

Find PPP.

[3]
Markscheme

3 Mechanics Questions

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