1- The roller coaster car has a brake and return system that has characteristics of a spring with a constant 45 Ibs / ft. If the car has an initial velocity of 3 ft/ s, determine the total force that the brake and return system must store. Assume that there is no friction, that the travel on the flat (from D to the spring) is 350 feet, and that the test weight of the car with passengers is 1000 Ibs. What does the sign of the answer mean?
1- The roller coaster car has a brake and return system that has characteristics of a spring with a constant 45 Ibs / ft. If the car has an initial velocity of 3 ft/ s, determine the total force that the brake and return system must store. Assume that there is no friction, that the travel on the flat (from D to the spring) is 350 feet, and that the test weight of the car with passengers is 1000 Ibs. What does the sign of the answer mean?
International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter7: Dry Friction
Section: Chapter Questions
Problem 7.71P: The 600-lb cable spool is placed on a frictionless spindle that has been driven into the ground. If...
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