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A 1.0 kg ball and a 2.0 kg ball are connected by a
Chapter 18, Problem 61GP(choose chapter or problem)
A 1.0 kg ball and a 2.0 kg ball are connected by a 1.0-m-long rigid, massless rod. The rod and balls are rotating clockwise about their center of gravity at 20 rpm. What torque will bring the balls to a halt in 5.0 s?
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QUESTION:
A 1.0 kg ball and a 2.0 kg ball are connected by a 1.0-m-long rigid, massless rod. The rod and balls are rotating clockwise about their center of gravity at 20 rpm. What torque will bring the balls to a halt in 5.0 s?
ANSWER:SOLUTION: Two balls are connected by a rigid,massless rods are a rigid body rotating about an axis through center of gravity.we have placed origin of system on 1 kg ball. The net torque is expressed as = I .to calculate the torque we require the moment of inertia c.g and angular accelerat