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.

Explanation

To solve the problem, we need to analyze the sequence of events in the football scenario and identify how many times the velocity of the ball changes. We will also identify the agents supplying the force in each case.

### Step-by-Step Solution:

1. **Identify the Initial Kick**:
- The first player (let's call him Player A) kicks the football towards another player on his team (Player A').
- **Change in Velocity**: The ball's velocity changes as it goes from being stationary to moving towards Player A'.
- **Agent Supplying Force**: Player A.
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