A force of 5 N acts on a body, moving it 2 m in the direction of the force. What is the work done by the force?
Answer
10 J
The correct answer is 10 J — Step 4: Conclude that the work done is .
Step-by-step solution
- Step 1: Identify the magnitude of the force, , and the displacement, , both along the same direction.
- Step 2: Use the formula for work done by a constant force: .
- Step 3: Substitute the values: .
- Step 4: Conclude that the work done is .
Common mistake: Treating displacement as a vector and multiplying magnitudes without considering direction
Concept tested: Work done by a constant force
Published · How this solution was prepared and checked
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