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Physics - NLM Question with Solution | TestHub

PhysicsNLMFrictionMedium2 minQB

PhysicsMediummultiple choice

In the given figure, a block A rests on a smooth triangular block B and the block B is moved at an acceleration of $a = 2 m / s^{2}$ along the plane :-

Options:(select one or more)

Answer:

B, D

Solution:

$\Rightarrow α^{'} = α sin θ \Rightarrow^{'} m α^{'} = m g - N \Rightarrow N = m (g - α sin θ)$

for no relative motion between A & B : $f = m α cos θ$ For minimum value of coefficient of friction : $μ N = macos θ$

$\Rightarrow μ m (g - a sin θ) = m α cos θ \Rightarrow μ_{min} = \frac{a c o s θ}{g - a s i n θ}$

Stream:JEESubject:PhysicsTopic:NLMSubtopic:Friction

⏱ 2mℹ️ Source: QB

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