Work calculation: If F = 4 N and d = 2 m, what is the work W?

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Multiple Choice

Work calculation: If F = 4 N and d = 2 m, what is the work W?

Explanation:
Work is the energy transfer that occurs when a force moves an object through a distance in the same direction as the force. The formula is W = F d cos theta, and when the force and motion align (theta = 0), cos theta = 1, so W = F d. Here, F = 4 N and d = 2 m, so W = 4 × 2 = 8 J. So the work done is 8 joules. The other values would require different distances or forces (for example, 16 J would need a longer distance or a larger force; 4 J would need half the distance; 12 J would need three metres). With the given numbers, 8 J is the correct result.

Work is the energy transfer that occurs when a force moves an object through a distance in the same direction as the force. The formula is W = F d cos theta, and when the force and motion align (theta = 0), cos theta = 1, so W = F d.

Here, F = 4 N and d = 2 m, so W = 4 × 2 = 8 J. So the work done is 8 joules.

The other values would require different distances or forces (for example, 16 J would need a longer distance or a larger force; 4 J would need half the distance; 12 J would need three metres). With the given numbers, 8 J is the correct result.

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