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1.Using Calculus Derive W_ext=1/2mv_f^2-1/2mv_i^2 2. An athlete jumping vertically on a trampoline leaves the surface with...

1.Using Calculus Derive W_ext=1/2mv_f^2-1/2mv_i^2

2. An athlete jumping vertically on a trampoline leaves the surface with a velocity of 8.5m/s upward. What maximum height does she reach on Earth?(g=9.8m/s)

3. Define force causing centripetal acceleration.


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