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Physics - NLM Question with Solution | TestHub

PhysicsNLMFrictionMedium2 minQB

PhysicsMediumsingle choice

A cart of mass $M$ has a block of mass $m$ in contact with it as shown in the figure. The coefficient of friction between the block and the cart is $μ$ . What is the minimum acceleration of the cart so that the block $m$ does not fall?

Options:

Answer:

Solution:

The cart pushes the block with
$N = ma$
friction $μ N \geq m g$ keeps it from falling, so $μ ma \geq m g$ and
$a_{min} = \frac{g}{μ} .$
Option B.

Subject:PhysicsTopic:NLMSubtopic:Friction

⏱ 2mℹ️ Source: QB

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