As shown in Fig. 10-2, a constant force of 40 N is applied tangentially to the rim
Question:
As shown in Fig. 10-2, a constant force of 40 N is applied tangentially to the rim of a wheel having a 20-cm radius. The wheel, which can rotate frictionlessly, has a moment of inertia of 30 kg · m2. Find
(a) The resulting angular acceleration,
(b) The angular speed after 4.0 s from rest, and
(c) The number of revolutions made in that 4.0 s.
(d) Show that the work done on the wheel in those 4.0 s is equal to the KEr of the wheel after 4.0 s.
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a The torque on the wheel can be computed and we know the ...View the full answer
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