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Physics - NLM Question with Solution | TestHub

PhysicsNLMMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

A particle is projected along a line of greatest slope on a rough plane inclined at an angle of $45 °$ with the horizontal. If the coefficient of friction is $\frac{1}{2}$ , then the retardation is

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Answer:

Solution:

The acceleration of the body on the incline is

$a = g (\sin θ + μ \cos θ)$

$a = g (\sin 4 5 ° + \frac{1}{2} \times \cos 45 °)$

$a = g (\frac{1}{\sqrt{2}} + \frac{1}{2} \times \frac{1}{\sqrt{2}})$

$a = \frac{g}{\sqrt{2}} (1 + \frac{1}{2})$

$a = \frac{3 g}{2 \sqrt{2}}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:NLMSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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