A counterweight of mass m = 5.20 kg is attached to a light cord that is wound around a pulley as shown in the figure below. The pulley is a thin hoop of radius R = 7.00 cm and mass M = 3.00 kg. Th pokes have negligible mass. M (a) What is the net torque on the system about the axle of the pulley? magnitude N m direction ---Select--- v (b) When the counterweight has a speed v, the pulley has an angular speed w = v/R. Determine the magnitude of the total angular momentum of the system about the axle of the pulley. kg m)v
A counterweight of mass m = 5.20 kg is attached to a light cord that is wound around a pulley as shown in the figure below. The pulley is a thin hoop of radius R = 7.00 cm and mass M = 3.00 kg. Th pokes have negligible mass. M (a) What is the net torque on the system about the axle of the pulley? magnitude N m direction ---Select--- v (b) When the counterweight has a speed v, the pulley has an angular speed w = v/R. Determine the magnitude of the total angular momentum of the system about the axle of the pulley. kg m)v
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Transcribed Image Text:A counterweight of mass m = 5.20 kg is attached to a light cord that is wound around a pulley as shown in the figure below. The pulley is a thin hoop of radius R = 7.00 cm and mass M = 3.00 kg. The
spokes have negligible mass.
M
(a) What is the net torque on the system about the axle of the pulley?
magnitude
N m
direction ---Select---
(b) When the counterweight has a speed v, the pulley has an angular speed = v/R. Determine the magnitude of the total angular momentum of the system about the axle of the pulley.
(
kg. m)v
(c) Using your result from (b) and 7 = d/dt, calculate the acceleration of the counterweight. (Enter the magnitude of the acceleration.)
m/s²
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