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Physics - Rotation Question with Solution | TestHub

PhysicsRotationTorque / angular accelerationEasy2 minQB

PhysicsEasynumerical

A motor generates an output power of $220 W$ at an angular velocity of $2100 rpm$ . Calculate the torque (in $N m$ ) produced by the motor? [Take $π = \frac{22}{7}$ ]

Answer:

1.00

Solution:

$ω = 2100 \times \frac{2 π}{60} = 70 π rad s^{- 1}$
$P = τ ω$
$τ = \frac{P}{ω} = \frac{220 \times 7}{70 \times 22} = 1 N m$

Stream:JEESubject:PhysicsTopic:RotationSubtopic:Torque / angular acceleration

⏱ 2mℹ️ Source: QB

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