Question

It would be appreciated if all questions were answered and have shown work. :)

Answer 1

1)

P = mv  

P=75 (18) = 1350 kg-m/s

2)

0.25 v= 0.05 (500)

V= 100 m/s

3)

∆ mv = F∆t

55(20) =F(0.5)

Answer 2

1. The formula for momentum is:
p = mv
p =75(18) = 1350 kg-m/s

2. We equate the momentum of the two objects
0.25 v = 0.05 (500)
v = 100 m/s

3. We use the formula for impulse:
Δmv = FΔt
55(20) = F(0.5)
F = 2200 N