Physics Impulse and change in momentum

FratBro23
Category:
Physics
Price: $5 USD

Question description

A 74.8kg mountain bike rider takes a jump with his bike and lands with a downward velocity of 4.43m/s 

a) what is the average net upward force the springs on the bike frame must exert to stop the downward motion in 0.416s?

b) what is the TOTAL average upward force the springs on the bike frame must exert to stop the downward motion in 0.439? 

Answer:

a) 797N     b) 1490N

I understand question a but when I try question b I cannot get the right answer. Please help.

Tutor Answer

(Top Tutor) Daniel C.
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School: UCLA
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