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Physics - Circular Motion Question with Solution | TestHub

PhysicsCircular MotionDynamicsEasy2 minQB

PhysicsEasysingle choice

A trick cyclist rides his bike around a well of death in the form of a vertical cylinder (see figure). The maximum frictional force parallel to the surface of the cylinder is equal to a fraction $μ$ of the normal force exerted by the wall. At what minimum constant speed must the cyclist go to avoid slipping down ? (Assume that size of motorcycle is very small as compared to cylinder.)

Options:

Answer:

Solution:

$N = \frac{m v ^{2}}{r}$ ; $f = μ N = m g$

or $\frac{μ m v ^{2}}{r} = 1$

$v = (\frac{g r}{μ})^{1/2}$

Stream:JEESubject:PhysicsTopic:Circular MotionSubtopic:Dynamics

⏱ 2mℹ️ Source: QB

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