COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 5, Problem 57QAP
To determine
The maximum speed of the hockey puck can achieve, without breaking the string
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A string can support a stationary hanging load of mass
25 kg before breaking. a) Calculate the maximum tension
that the string can support. b) Suppose one end of the
string is attached to an object of mass m = 3 kg, while the
other end is fixed to the center of a frictionless table as
shown in the figure. When given an initial speed, the object
moves along a horizontal circle of radius R = 0.8 m.
Calculate the maximum speed the object can have before
the string breaks.
A 23 kg box of garbage is connected by a massless string to a post on a frictionless table. The string is 1.5 m long. There is no appreciable friction between the post and the string. If the tension in the string is 71 N while the garbage slides in a uniform circle toward a disposal bin, how long does it take for the box to make one complete revolution?
a) 3.5 s
b) 2.2 s
c) 1.2 s
d) 4.4 s
e) 5.4 s
A string is attached to a 120-gram wooden cube. The string turns in a horizontal circle of radius 5.0 cm but make angle of 25° below the horizontal. a) Calculate the tension in the string B) Calculate the speed of the wooden block.
Chapter 5 Solutions
COLLEGE PHYSICS
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