Answer:
0.06 J
Explanation:
The kinetic energy of an object is given by:
[tex]K=\frac{1}{2}mv^2[/tex]
where
m is the mass of the object
v is the speed
For the ball in this problem,
m = 30 g = 0.030 kg
v = 2 m/s
Therefore, the kinetic energy of the ball is
[tex]K=\frac{1}{2}(0.030 kg)(2 m/s)^2=0.06 J[/tex]