Physics 9702 · AS & A Level · Scalars and vectors

Scalars and vectors — practice question

A ball hits a wall. Before the impact, the ball is moving with velocity $8\ \text{m s}^{-1}$ to the right. After the impact, it is moving with velocity $3\ \text{m s}^{-1}$ to the left. Determine the change in velocity of the ball in the collision?

  • A$5\ \text{m s}^{-1}$ to the left
  • B$5\ \text{m s}^{-1}$ to the right
  • C$11\ \text{m s}^{-1}$ to the left
  • D$11\ \text{m s}^{-1}$ to the right

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