Physics Work & Energy KU 2024
PMDC Verified Question 8 of 108
If a constant force of 10 N is applied to move an object 5 m in the direction of the force, what is the work done?
A
2 J
B
5 J
C
15 J
D
50 J
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: 50 J
Concept:

When force and displacement are in the same direction, work is simply their direct product.

Formula:

$$ W = F \times d $$

Solution:

  • Force (\( F \)) = 10 N


  • Displacement (\( d \)) = 5 m


  • "In the direction of the force" means \( \theta = 0^{\circ} \), so \( \cos(0) = 1 \).


  • \( W = 10 \times 5 = 50 \text{ J} \).


Why other options are incorrect:

Option A divides force by distance. Option C adds them. Option B is just the distance.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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