Question

Could somebody please explain the question in the image to me in detail? I really need to understand this question. thanks in advance!​

Answer 1

Explanation:

Momentum before = momentum after

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

(60 kg) (0 m/s) + (70 kg) (0 m/s) = (60 kg) v + (70 kg) (1.0 m/s)

v = -1.2 m/s

Her velocity would be 1.2 m/s in the opposite direction.