Missy Diwater the former platform diver for the Ringling Brother's circus had a kinetic energy of 15000 j just to prior to hitting the bucket of water. If Missy's mass is 50 kg, then what is her speed?
Missy's kinetic energy just before hitting the bucket of water is given by [tex]K= \frac{1}{2}mv^2 [/tex] where m is Missy's mass and v her speed. Since we know the value of the kinetic energy, K=15000 J and the mass, m=50 kg, we can find Missy's speed before hitting the water bucket: [tex]v= \sqrt{ \frac{2K}{m} } = \sqrt{ \frac{2 \cdot 15000 J}{50 kg} } =24.5 m/s[/tex]
