Answer:
0.080625 m/s
Explanation:
According the Newton's second law of motion, which specifies conservation of Momentum.
(Momentum of the ball moving away) + (momentum of the quarterback) = 0
0.43 × 15 = - (80 × v)
v = - (0.43 × 15)/80
v = - 0.080625 m/s
The minus indicates that the quarter back moves backwards.
Answer:
Explanation:
Given:
Mass, Mq = 80 kg
Mass, Mf = 0.43 kg
velocity, Vf = 15 m/s
Using the momentum - conservation theory,
Mq × Vq = Mf × Vf
80 × Vq = 0.43 × 15
V = 0.0806
= 0.081 m/s