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Answer: The vehicle has a weight of 2600 lb and center of
Chapter 8, Problem 8-128(choose chapter or problem)
The vehicle has a weight of 2600 lb and center of gravity at G. Determine the horizontal force P that must be applied to overcome the rolling resistance of the wheels. The coefficient of rolling resistance is 0.5 in. The tires have a diameter of 2.75 ft.
Questions & Answers
QUESTION:
The vehicle has a weight of 2600 lb and center of gravity at G. Determine the horizontal force P that must be applied to overcome the rolling resistance of the wheels. The coefficient of rolling resistance is 0.5 in. The tires have a diameter of 2.75 ft.
ANSWER:
Step 1 of 7
First, we'll isolate and draw the free-body diagram of the car without its wheels.
Note that part of car weight will go to the front, and part to the back wheels, but since radius of tires are equal for all wheels as well as the coefficient of rolling resistance, we can avoid calculating what part of the weight goes on each wheel