A block B of mass 3 kg slides on a frictionless arm which rotates in horizontal

Question

A block B of mass 3 kg slides on a frictionless arm which rotates in horizontal plane at constant rate of = 10 rad/s. Initially the mass is 600 mm away and as the arm rotates, the cord wraps around a fixed drum of radius b = 50 mm and pulls the block towards O with the speed of b. Find the tension in the cord.

A block B of mass 3 kg slides on a frictionless arm which rotates in horizontal plane at constant rate of = 10 rad/s. Initially the mass is 600 mm away and as the arm rotates, the cord wraps around a fixed drum of radius b = 50 mm and pulls the block towards O with the speed of b. Find the tension in the cord.

Explanation / Answer

tension=3X9,8N

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