Question

A soccer ball is traveling at a velocity of 50 m/s. The kinetic energy of the ball is 500 J. What is the mass of the soccer ball? (Formula: KE= 1/2 mv2

answers:
0.1 kg
0.2 kg
0.4 kg
0.5 kg

Answer 1

0.4 kg

Step-by-step explanation:

KE = 1/2mv^2

2KE/v^2 = m

KE = 500 J

v = 50 m/s

2 x 500/50^2 = m

1000/2500 = m

0.4 m