(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The drawing below shows a person who, starting from rest at the top of a cliff, swings down at the end of a rope, releases it, and falls into the water below. There are two paths by which the person can enter the water. Suppose he enters the water at a speed of 10.0 m/s via path 1. How fast is he moving on path 2 when he releases the rope at a height of 3.80 m above the water? Ignore the effects of air resistance.

2. Relevant equations

KEf+PEf=KEo+PEo

KE=1/2mv^2

PE=mgh

3. The attempt at a solution

KEf=KEo+PEo-PEf

Vf=sqr(2((.5*Vo)+(9.8*10)-(9.8*3.8)))

Vf=13.7m/s

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# Homework Help: Kinetic and potetnial energy in a circle?

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