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Physics - Rotation Question with Solution | TestHub

PhysicsRotationTorque / angular accelerationEasy2 minPYQ_2019

PhysicsEasysingle choice

A rod $l$ m long is acted upon by a couple as shown in the figure. The moment of couple is $τ$ Nm. If the force at each end of the rod, then magnitude of each force is
$(s i n 30^{o} = c o s 60^{o} = 0.5)$

Options:

Answer:

Solution:

Length of rod = $l$
Moment of couple,
$l τ = F l s i n θ$
$∴ F = \frac{τ}{l s i n θ} - \frac{τ}{l s i n 30^{o}} = \frac{τ}{l \times \frac{1}{2}}$
Force, $F = \frac{2 τ}{l}$

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

⏱ 2mℹ️ Source: PYQ_2019

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