What is the mass of a volleyball, if it is acquired after hitting an athlete lasting 0.05 s at a speed of 50 m / s?

What is the mass of a volleyball, if it is acquired after hitting an athlete lasting 0.05 s at a speed of 50 m / s? The athlete’s impact force is 200N.

t = 0.05 s.
Vo = 0 m / s.
V = 50 m / s.
F = 200 N.
m -?
According to Newton’s 2 law, the force F is equal to the product of the body’s mass m by its acceleration a.
F = m * a.
m = F / a.
According to the definition, acceleration is determined by the formula: a = (V – Vo) / t. Since Vo = 0 m / s, then a = V / t.
m = F * t / V.
m = 200 N * 0.05 s / 50 m / s = 0.2 kg.
Answer: The mass of the volleyball is m = 0.2 kg.