A football player kicks a 0.5 kg ball and imparts ita velocity of 10 m/s. The contact between foot andball is only for 1/50th second. The kicking force is

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Q. A football player kicks a 0.5 kg ball and imparts it a velocity of 10 m/s. The contact between foot and ball is only for 1/50th of a second. The kicking force is?

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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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