Question

A 51 kg woman skis down a hill and her kinetic energy is 9.96e4 j. What is her speed?

Answer 1

Kinetic energy of woman is given as

`KE = 9.96 * 10^4 J`

mass of woman is given as

`m = 51 kg`

now we will have

`KE = (1)/(2)mv^2`

`9.96 * 10^4 J = (1)/(2)(51) v^2`

`v^2 = (9.96 * 10^4)/(25.5)`

`v^2 = 3.91 * 10^3`

`v = 62.5 m/s`