Answer:
0.4 Kgs.
Explanation:
A soccer ball is travelling at a velocity of 50 m/s.
The kinetic energy of the ball is 500 J.
The mass of the soccer ball is 0.4 kgs.
This answer is derived from the formula K=1/2 MV^2.
So velocity and kinetic energy are given from that mass of the ball is calculated.
By substituting the values 500=1/2*M*50*50 which gives M=0.4 Kgs.