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Physics - NLM Question with Solution | TestHub

PhysicsNLMFrictionMedium2 minQB

PhysicsMediuminteger

Blocks A and B each have same mass $m = 1 kg$ . Determine the largest horizontal force P (in newton) which can be applied to B so that A will not slip up on B. Neglect any friction.

Answer:

Solution:

For block A, vertical balance: $N cos 3 7^{\circ} = m g$

Horizontal: $N sin 3 7^{\circ} = ma$ , so $a = g tan 3 7^{\circ} = 7.5$ m/s $^{2}$

For A and B together: $P = (m_{A} + m_{B}) a = 2 \times 7.5 = 15$ N

Subject:PhysicsTopic:NLMSubtopic:Friction

⏱ 2mℹ️ Source: QB

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