Concept explainers
The maximum angle at which the car can be left parked on a hill.
Answer to Problem 37P
Solution:
Explanation of Solution
Given:
The coefficient of static friction between hard rubber and normal street pavement is about is 0.90.
Formula used:
Frictional force F is obtained by:
Where,
From Newton’s second law of motion.
Where, m is the mass and a is the acceleration.
Calculation:
Let weight of the car be W and the angle of inclined hill at which car can be parked be x .
Consider a free body diagram:
f is the static frictional force.
For the car to remain parked, the component of the force along the incline would be equal to the static frictional force.
Conclusion:
At
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