COLLEGE PHYSICS,VOLUME 1
2nd Edition
ISBN: 9781319115104
Author: Freedman
Publisher: MAC HIGHER
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Chapter 4, Problem 70QAP
To determine
The magnitude of the force that the bicycle exerts on the rider.
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PROBLEM 2
• An elevator and its load have a total mass of
800kg.Find the tension in the supporting
cable when the elevator or lift originally
moving downwards at 10m/s is brought to
rest with a constant acceleration in a distance
25m
Answer T-9600N.Since T> W the system is
retarding.
3- The student pushes horizontally on a 37 kg box with a force of 115 N.
The coefficient friction between the box and the floor is 0.37. What is the
frictional force on the crate from the floor?
a- 115 b- 230 c-110
d-121
25 -
A diver with a mass of 70 kg jumps from the 10.0 meter high tower for a direct-vertical dive. Its movement ends at 2.50 meters below the water level. Find the average drag force exerted by the water on the diver.
A)
1.50 kN
B)
4.12 kN
C)
3.09 kN
D)
5.34 kN
E)
1.05 kN
Chapter 4 Solutions
COLLEGE PHYSICS,VOLUME 1
Ch. 4 - Prob. 1QAPCh. 4 - Prob. 2QAPCh. 4 - Prob. 3QAPCh. 4 - Prob. 4QAPCh. 4 - Prob. 5QAPCh. 4 - Prob. 6QAPCh. 4 - Prob. 7QAPCh. 4 - Prob. 8QAPCh. 4 - Prob. 9QAPCh. 4 - Prob. 10QAP
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- Describe a situation in which the net external force on a system is not zero, yet its speed remains constant.arrow_forwardAn automobile driver traveling down an 8% grade slams on his brakes and skids 30 m before hitting a parked car. A lawyer hires an expert who measures the coefficient of kinetic friction between the tires and road to be k = 0.45. Is the lawyer correct to accuse the driver of exceeding the 25-MPH speed limit? Explain.arrow_forward32 - A diver with a mass of 70 kg jumps from the 10.0 meter high tower for a direct-vertical dive. Its movement ends at 2.50 meters below the water level. Find the average drag force exerted by the water on the diver. a) 3.09 kN B) 5.34 kN NS) 1.50 kN D) 1.05 kN TO) 4.12 kNarrow_forward
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