Physics · Unit 2 · Linear motion and force · Linear motion
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A tennis ball of mass 58 g travelling at 12 m s⁻¹ strikes a wall and rebounds in the opposite direction at 8.0 m s⁻¹. The contact time with the wall is 0.025 s. Describe the relationship between impulse and the change in momentum of the tennis ball during the collision.
A hockey ball of mass 160 g is initially at rest on the field. A player strikes the ball with a stick, and the ball reaches a velocity of 25 m s⁻¹ in the direction of the goal. High-speed camera footage shows that the stick was in contact with the ball for 0.012 s. Describe the concepts of momentum and impulse in the context of this scenario.
Describe the relationship between momentum and impulse for an object experiencing a constant net force.