A footballer kicks a stationary ball resting on the ground.
PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A footballer kicks a stationary ball resting on the ground.
(i) At the instant the foot is in contact with the ball, list the action–reaction force pair between the foot and the ball, mentioning the bodies and directions involved.
(ii) Draw separate free-body diagrams for (a) the ball and (b) the player’s foot during the brief contact. Show only the forces due to their mutual interaction.
(iii) Which of the two forces named in part (i) causes the acceleration of the ball? Give a brief reason for your answer.