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Physics - NLM Question with Solution | TestHub

PhysicsNLMFrictionMedium2 minQB

PhysicsMediumsingle choice

A body is projected up an inclined plane of angle of elevation $α$ . The coefficient of friction between the block and the incline is $0.5 tan α$ . The ratio of the time of ascent to the time of descent is:

Options:

Answer:

Solution:

$a_{1} = g sin α (1 + 0.5) = 1.5 g sin α$
$a_{2} = 0.5 g sin α$
$\frac{t _{u p}}{t _{d o w n}} = \frac{a _{2}}{a _{1}} = \frac{1}{3} = \frac{1}{3} .$
Option A.

Subject:PhysicsTopic:NLMSubtopic:Friction

⏱ 2mℹ️ Source: QB

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