COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 5, Problem 28QAP
To determine
Mass m1of the rock at the end of the shorter string compared to the mass m2of the rock at the end of the long one
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A rock of mass m=0.71 kg is attached to a massless string of length L= 0.52 m. The rock is swung in a vertical circle faster and faster up to a speed of v= 4.6 m/s, at which time the string breaks. This occurs when the string is horizontal as shown in the figure.
Part A- What is the magnitude of the tension, in newtons, at which the string breaks ?
Part B- What is the magnitude of the tension, in newtons, at which the string breaks?
A rock mass m=0.71 kgIs attached to a massless string of length l= 0.52 m. The rock is swung in a vertical circle faster and faster up to speed of v=2.7 m/s, at which time the string breaks. This occurs when the string is horizontal as shown in the figure. (A) what is the magnitude of the tension, in Newton’s , at which the string breaks?(B) how high, in meters, does the rock travel? Use a value of h=0 at the location of the breaks. 
If gravity pulls you down toward the center of Earth with a force of 500 N, how much upward force does the ground exert on you?
A. 250 N
B. 0 N
C. 100 N
D. 500 N
Chapter 5 Solutions
COLLEGE PHYSICS
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