Net Work & Kinetic Energy Video Lessons

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Problem: A car is traveling on a level road with speed v0 at the instant when the brakes lock, so that the tires slide rather than roll.You may want to review (Pages 177 - 182). For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Using work and energy to calculate speed.Use the work-energy theorem to calculate the minimum stopping distance of the car in terms of v0, g, and the coefficient of kinetic friction k between the tires and the road.By what factor would the minimum stopping distance change if the coefficient of kinetic friction were doubled ?By what factor would the minimum stopping distance change if the initial speed were doubled?By what factor would the minimum stopping distance change if both the coefficient of kinetic friction and the initial speed were doubled?

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Problem Details
A car is traveling on a level road with speed v0 at the instant when the brakes lock, so that the tires slide rather than roll.

You may want to review (Pages 177 - 182).

For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Using work and energy to calculate speed.

Use the work-energy theorem to calculate the minimum stopping distance of the car in terms of v0, g, and the coefficient of kinetic friction k between the tires and the road.

By what factor would the minimum stopping distance change if the coefficient of kinetic friction were doubled ?

By what factor would the minimum stopping distance change if the initial speed were doubled?

By what factor would the minimum stopping distance change if both the coefficient of kinetic friction and the initial speed were doubled?

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