Work Done By Constant Force
Easyphysics
A force of 10 N displaces a body by 5 m in the direction of the force. How much work is done?
Select the correct option:
Solution
Incorrect! Answer:
50 J
- Definition of Work: Work done (W) by a constant force is the scalar product of the force and displacement vectors.
- Formula: W=F⋅s⋅cosθ.
- Application:
- Force F=10 N.
- Displacement s=5 m.
- Angle θ=0∘ (in the direction of the force).
- Calculation: W=10×5×cos0∘=50×1.
- Result: W=50 Joules.
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About This Question
- Subject
- physics
- Chapter
- work, energy and power
- Topic
- work done by constant force
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
50 J
- Definition of Work: Work done (W) by a constant force is the scalar product of the force and displacement vectors.
- Formula: W=F⋅s⋅cosθ.
- Application:
- Force F=10 N.
- Displacement s=5 m.
- Angle θ=0∘ (in the direction of the force).
- Calculation: W=10×5×cos0∘=50×1.
- Result: W=50 Joules.
This easy difficulty physics question is from the chapter work, energy and power, covering the topic of work done by constant force. It appeared in the 2025 exam.
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