In the following example, try to
identify the number of times the
velocity of the ball changes:
“A football player kicks a football
to another player of his team who
kicks the football towards the
goal. The goalkeeper of the
opposite team collects the football
and kicks it towards a player of
his own team”. Also identify the agent supplying
the force in each case.
The velocity of the football changes four times in the described scenario. The agents applying the force in each case are: 1) the first football player, 2) the second football player, 3) the goalkeeper when collecting the ball (or stopping it), and 4) the goalkeeper when kicking the ball.