A car with mass 1300 kg was travelling at 10 m/s when the driver stepped on the brakes. The car was put to a complete stop at exactly 6 seconds. Find the average breaking force. *Use g=9.8

Physics for Scientists and Engineers, Technology Update (No access codes included)
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Author:Raymond A. Serway, John W. Jewett
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Chapter5: The Laws Of Motion
Section: Chapter Questions
Problem 5.1OQ: The driver of a speeding empty truck slams on the brakes and skids to a stop through a distance d....
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8. A car with mass 1300 kg was travelling at 10 m/s when the driver stepped on the brakes. The car was put to a complete stop at exactly 6 seconds. Find the average breaking force. *Use g=9.8
 
a. 4, 8 14 N
b. -2, 167 N
c. 5, 387 N
d. 3, 721 N
e. 1, 548 N
 
11. A man is standing on a 23 degrees ramp. If the mass of the man is 53 kg, calculate the normal force provided by the ramp to the man. *Use g=9.8
 
a. 478 N
b. 341 N
 
c. 203 N
 
d. 436 N
 
e. 556 N
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