Asked by Cyndal
13. A car traveling at 60 km/h will skid 30 m when its brakes are locked. If the same care is traveling at 180 km/h, what will be the skidding distance? Be sure to show all work to support your answer.
Answers
Answered by
Steve
since the distance is proportional the the square of the speed,
3*speed ==> 9*distance
3*speed ==> 9*distance
Answered by
bobpursley
triple the speed, increase distance by 9x
distance=9*30
reason:
work done=KE
friction*distance=1/2 m v^2
so distance is proportional to v^2
distance=9*30
reason:
work done=KE
friction*distance=1/2 m v^2
so distance is proportional to v^2
Answered by
Steve
Interesting, how showing your work means showing the work!
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