A 75 kg ski jumper starts his jump from the top of a 100 m high hill.
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Question:
A 75 kg ski jumper starts his jump from the top of a 100 m high hill. She/he slides down the hill and up a jump board that is inclined at 45 degree and is 30 m high and reaches a speed of 102 km/h at the end of the board.
a. What is the ski jumper’s kinetic energy at the end of the board?
b. What would be her/his kinetic energy in the absence of friction?
c. What is the work lost in friction during the descent?
Related Book For
Fundamentals of Ethics for Scientists and Engineers
ISBN: 978-0195134889
1st Edition
Authors: Edmund G. Seebauer, Robert L. Barry
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