DC Physics logo HOME | Practice Problems } Monthly Features | Textbook Errata | Humor | About DC Physics

HELP HOME PAGE

Make a Practice Test

Some Hints & Solutions

Conservation of Mechanical Energy

Problem #: 3 | Variant #: 3

A 864 kg vehicle is speeding along a twisting road. Coming around a corner the driver spots an accident across the road ahead. He, hits the brakes, but still collides at 60.41 km/h. Without speeding (speed limit = 55 km/h) and under the same braking conditions he would have stopped just before hitting. How much faster than the speed limit was the car traveling?

km/h

Get Another Conservation of Mechanical Energy Question

Hints: How to solve this type of problem

Try a Minitest: 6 problems of this type


NOTE: While these problems are made by a former University Physics professor and are seen thousands of times a week, it is possible that there are typo's or other errors that nobody has yet reported to be fixed. If you are convinced that there is a problem with the solution to this question please send the details to doug@dctech.com