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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.

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The velocity of the ball changes four times.
First, when a football kicks to another player, second when that player kicks the football to the goalkeeper. Third when the goalkeeper stops the football. Fourth when the goalkeeper kicks the football towards a palyer of his own team.
Agent supplying the force.
Firts case-First player.
Second case- Second player
Third case- Goalkeeper
Fourth case- Goalkeeper

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