UPCAT Science practice question 33: A student pushes a crate with a constant force of 25 N over a distance of 4 m in the direction of the force. How much work is done?
Correct answer
C. 100 J
Work equals force times displacement along the force: 25 N × 4 m = 100 J.
The question
A student pushes a crate with a constant force of 25 N over a distance of 4 m in the direction of the force. How much work is done?
- Option A: 6.25 J
- Option B: 29 J
- Option C: 100 JCorrect
- Option D: 100 N
Why C is correct
Work equals force times displacement along the force: 25 N × 4 m = 100 J.