Science
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.
Laws of Motion
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Answer
The velocity of the ball changes :
- When the football player kicks a football to another player,
- When that player kicks the football towards the goal.
- When the goalkeeper stops the football.
- When the goalkeeper kicks the football towards his team player.
Hence, the velocity of the football changes four times.
Agent supplying the force:
(a) The First case is the First player
(b) The Second case is the Second player
(c) The Third case is Goalkeeper
(d) The Fourth case is Goalkeeper
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