Concept explainers
To find: The initial speed of car.
Answer to Problem 70GP
Explanation of Solution
Given Data:
Length of skid marks
Co-efficient of kinetic friction
Formula Used:
Calculation:
Length of skid marks
Co-efficient of kinetic friction
Final velocity of car
On the level road, the frictional force is the only force slowing the automobile.
Applying Newton's II Law, for the horizontal component of
Horizontal component,
To find the initial velocity, using
Initial velocity of car,
Conclusion:
The initial velocity of the car is
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