College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Textbook Question
Chapter 10, Problem 2P
Calculate the net torque about point O for the two forces applied as in Figure 10.42. The rod and both forces are in the plane of the page.
Figure 10.42
Problem 2.
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Students have asked these similar questions
A square metal plate 0.180 m on cach side is pivoted about
an axis through point O at its center and perpendicular to the plate
(Fig. 10.39). Calculate the net torque about this axis due to the
three forces shown in the figure if the magnitudes of the forces are
F = 18.0 N, F2 = 26.0 N, and F3 = 14.0 N. The plate and all
forces are in the plane of the page.
F1
0.180 m
45°
0.180 m
A square metal plate 0.180 m on each side is pivoted about an axis through point O at its center and perpendicular to the plate (Fig. 1). Calculate the net torque about this axis due to the three forces shown in the figure if the magnitudes of the forces are and F1 = 18.0 N, F2 = 26.0 N, and F3 = 14.0N. The plate and all forces are in the plane of the page.
Suppose you exert a force of 172 N tangential to a 0.295 m radius 75.0 kg grindstone (a solid disk). (Give your answers to at least 2 decimal places.)
(a) What torque (in N · m) is exerted? (Enter the magnitude.)
50.74
N. m
(b) What is the angular acceleration (in rad/s?) assuming negligible opposing friction? (Enter the magnitude.)
15.55
rad/s?
(c) What is the angular acceleration (in rad/s?) if there is an opposing frictional force of 22.6 N exerted 1.75 cm from the axis? (Enter the magnitude.)
15.44
]× rad/s²
Chapter 10 Solutions
College Physics (10th Edition)
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