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A skier is gliding along at on horizontal, frictionless snow. He suddenly starts down a incline. His speed at the bottom is . W...Asked by Jennifer
A skier is gliding along at 5.0m/s on horizontal, frictionless snow. He suddenly starts down a 13 degrees incline. His speed at the bottom is 12m/s.
What is the length of the incline?
How long does it take him to reach the bottom?
What is the length of the incline?
How long does it take him to reach the bottom?
Answers
Answered by
drwls
Conservation of energy and the speed at the bottom can be used to determine the vertical drop. Call it H. Calculate it.
The length of the incline is H/sin13.
Time to reach the bottom is
T = (length of incline)/(average speed)
= H/[(sin13)*6m/s)
The length of the incline is H/sin13.
Time to reach the bottom is
T = (length of incline)/(average speed)
= H/[(sin13)*6m/s)
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