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A mass of  connected at the end of a rod of negligible mass is rotating in a circle of radius  with an angular velocity of . If this mass is brought to rest in  by a brake, what is the magnitude of the torque applied

a)

-

b)

-

c)

-

d)

-



Question ID - 52643 | SaraNextGen Top Answer

A mass of  connected at the end of a rod of negligible mass is rotating in a circle of radius  with an angular velocity of . If this mass is brought to rest in  by a brake, what is the magnitude of the torque applied

a)

-

b)

-

c)

-

d)

-

1 Answer
127 votes
Answer Key / Explanation : (a) -

(a)

,

Negative sign means retardation

Now -

 Torque -

127 votes


127