Define the physical concept of the work with some examples. [2 MARKS]

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Solution

Each point: 1 Mark

1. Let us consider that a constant force ‘F’ is able to displace the object a distance ‘s’ in the direction of force. Work can be defined as the product of Force and displacement.

2. Work = Force × displacement × Cosθ

Work = F× s × cosθ

Examples: Pulling a trolley, shooting an arrow etc.

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