Exam qs

• Describe the motion of the ball between points A and B on figure 1

  speed increasing at constant rate

  
• What direction is the ball moving between points C and D on figure 1?

  Upwards

  
• When the ball hits the ground, energy is transferred from the ball to the earth.

  explain how the data in figure 1 shows this energy transfer (4)

  • velocity just after bounce is less than just before bounce
  • so the ball has lost energy
  • loss of ke/gpe
  • total energy of ball and earth is constant