Question

Question 241 ptsHow much kinetic energy does a a 60 kg skater have traveling with a velocity of 4m/s?I1 ptsQuestion 25U82°F Clesiti99

Answer 1

Given:

The mass of skater is m=60 kg.

The velocity of skater is v=4 m/s.

The kinetic energy of the skater is given as,

$K=\frac{1}{2}mv^2$

Plug in the known values,

$\begin{gathered} K=\frac{1}{2}(60\text{ kg)(}4m/s)^2(\frac{1\text{ J}}{1kgm^2s^{-2}^{}}) \\ =120\text{ J} \end{gathered}$

Thus, the kinetic energy of the skater is 120 J.