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A 2.50-kg grinding wheel is in the form of a solid cylinder of radius 0.100 m. 1-...

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Physics

A 2.50-kg grinding wheel is in the form of a solid cylinder ofradius 0.100 m.

1- What constant torque will bring it from rest to an angularspeed of 1200 rev/min in 2.5 s?

2- Through what angle has it turned during that time?

3- Use equation W=τz(θ2−θ1)=τzΔθ to calculate the work done bythe torque.

4- What is the grinding wheel’s kinetic energy when it isrotating at 1200 rev/min?

5- Compare your answer in part (D) to the result in part(C).

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