Consider a motor that exerts a constant torque of 25.0 N⋅m to a horizontal platform whose moment of inertia is 50.0 kg⋅m2. Assume that the platform is initially at rest and the torque is applied for 12.0 rotations. Neglect friction. A. How much work W does the motor do on the platform during this process? =1885 J B. What is the rotational kinetic energy of the platform Krot,f at the end of the process described above? Enter your answer in joules to four significant figures.
Consider a motor that exerts a constant torque of 25.0 N⋅m to a horizontal platform whose moment of inertia is 50.0 kg⋅m2. Assume that the platform is initially at rest and the torque is applied for 12.0 rotations. Neglect friction. A. How much work W does the motor do on the platform during this process? =1885 J B. What is the rotational kinetic energy of the platform Krot,f at the end of the process described above? Enter your answer in joules to four significant figures.
Physics for Scientists and Engineers: Foundations and Connections
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ISBN:9781133939146
Author:Katz, Debora M.
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Consider a motor that exerts a constant torque of 25.0 N⋅m to a horizontal platform whose moment of inertia is 50.0 kg⋅m2. Assume that the platform is initially at rest and the torque is applied for 12.0 rotations. Neglect friction.
A. How much work W does the motor do on the platform during this process?
=1885 J
B.
What is the rotational kinetic energy of the platform Krot,f at the end of the process described above?
Enter your answer in joules to four significant figures.
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