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Physics - Rotation Question with Solution | TestHub

PhysicsRotationRotational KinematicsMedium2 minPYQ_2021

PhysicsMediumnumerical

A body rotating with an angular speed of $600 rpm$ is uniformly accelerated to $1800 rpm$ in $10 \sec .$ The number of rotations made in the process is

Answer:

200.00

Solution:

$ω_{f} = ω_{0} + α t$

$α = 1200 \times 6$

$θ = ω_{0} t + \frac{1}{2} α t^{2}$

$= 600 \times \frac{10}{60} + \frac{1}{2} \times 1200 \times 6 \times \frac{1}{36}$

$θ = 200$

Stream:JEESubject:PhysicsTopic:RotationSubtopic:Rotational Kinematics

⏱ 2mℹ️ Source: PYQ_2021

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