Physics 0625 · IGCSE · Momentum

Momentum — practice question

A tennis ball has momentum $2.3\,\text{kg m s}^{-1}$ and is hit by a tennis racket. As a result, the racket makes the ball reverse its direction of motion. During the collision, the racket exerts an average force of $1500\,\text{N}$ on the ball for $0.0024\,\text{s}$. What is the magnitude of the momentum of the ball when it leaves the tennis racket?

  • A$1.3\,\text{kg m s}^{-1}$
  • B$3.6\,\text{kg m s}^{-1}$
  • C$5.9\,\text{kg m s}^{-1}$
  • D$8.6\,\text{kg m s}^{-1}$

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