Answer:
The change in momentum of the ball = 81 kg·m/s
Step-by-step explanation:
Given:
m = 1.5 kg
V₁ = - 27 m/s
V₂ = + 27 m/s
____________
Δp - ?
The change in momentum of the ball:
Δp = m·ΔV
Δp = m· (V₂ - V₁) = 1.5·(27 - (-27)) = 1.5·(27 + 27) = 81 kg·m/s