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Physics - NLM Question with Solution | TestHub

PhysicsNLMSimple Application of NLMMedium2 minQB

PhysicsMediumsingle choice

A particle moving on the inside of a smooth sphere of radius $r$ describes a horizontal circle at a distance $\frac{r}{2}$ below the centre of the sphere. What is its speed?

Options:

Answer:

Solution:

The normal reaction makes angle $θ$ with the vertical where
$cos θ = \frac{r /2}{r} = \frac{1}{2}$
so
$θ = 60^{\circ} .$
Then
$v = g r sin θ tan θ = g r \times \frac{3}{2} \times 3 = \frac{3 g r}{2} .$
Option C.

Subject:PhysicsTopic:NLMSubtopic:Simple Application of NLM

⏱ 2mℹ️ Source: QB

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