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Most Important Selected Qs for JEE AdvancedPhysicsLaws of Motion

A flexible drive belt runs over a frictionless flywheel (see Figure). The mass per unit length of the drive belt is 1 ~kg / m , and the tension in the drive belt is 10 N . The speed of the drive belt is 2 ~m / s. The whole system is located on a horizontal plane. Find the normal force (in N ) exerted by the belt on the flywheel.]

Correct answer

12

Step-by-step solution

aligned & 2 ~T - N =m ^2 R _ cm = R ( V R )^2 2 R & 2 ~T - N =2 v ^2 & ~N =2 ~T -2 v ^2=2 10-2 1 4=12 ~N aligned

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