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PhysicsElasticityMiscellaneousEasy2 minPYQ_2020
PhysicsEasysingle choice

A body of massm=10kg is attached to a wire of length 0.3 m. The maximum angular velocity with which it can be rotated in a horizontal circle is (Breaking stress of wire=4.8×107 Nm-2 and area of cross-section of a wire=10-6 m2)

Options:

Answer:
A
Solution:

Breaking strength = tension in the wire =mrω2

4.8 ×107×10-6=10×0.3 ×ω2

ω2=480.3 ×10=16

ω=4 rads-1

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:ElasticitySubtopic:Miscellaneous
⏱ 2mℹ️ Source: PYQ_2020

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