Question

In the following example try to identify the numbers of times the velocity of the ball

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Answer 1

• How does the velocity of the ball change? (i) When the first player kicks the football, its speed changes from zero to a certain value. As the ball was at rest initially the velocity was zero at that stage. (ii) When another player kicks the ball towards the goal post, the direction of the ball gets changed.

Answer 2

Answer:

The velocity of football changes four times.First, when a football player 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 player of his own team.

Agent supplying the force

First case First player

Second case Second player

Third case Goalkeeper

Fourth case Goalkeeper

Explanation:

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