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Physics - Circular Motion Question with Solution | TestHub

PhysicsCircular MotionMiscellaneousEasy2 minPYQ_2020

PhysicsEasysingle choice

A particle moves in a circle of the radius $0.5 m$ at a speed that uniformly increases. Find the angular acceleration of particle if its speed changes from $2.0 m s^{- 1}$ to $4.0 m s^{- 1}$ in $4.0 s$ .

Options:

Answer:

Solution:

The tangential acceleration of the particle is

$a_{t} = \frac{d v}{d t} = \frac{4.0 - 2.0}{4.0}$

$= 0.5 m s^{- 2}$

The angular acceleration is

$α = \frac{a_{t}}{r} = \frac{0.5}{0.5} = 1 rad s^{- 2}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Circular MotionSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2020

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