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NDA 2024
Exam
NDA
Year
2024
Subject
General Ability
Chapter
General Science

NDA 2024 · General Ability · General Science

If the block P as shown in the figure below were to be at rest,...

If the block P as shown in the figure below were to be at rest, what should the magnitude of force F be? If the block P as shown in the figure below were to be at rest, what should the magnitude of force F be?

Options

  1. A5 N
  2. B6 N
  3. C8 N
  4. D10 N

Correct answer

C. 8 N

Step-by-step solution

Fnet =(10+15)−(2+F+15)0=25−2−F−15\begin{aligned} \mathrm{F}_{\text{net }} & =(10+15)-(2+\mathrm{F}+15) \\ 0 & =25-2-\mathrm{F}-15 \end{aligned}⇒0=25−17−F∴F=8N.\begin{array}{ll} \Rightarrow & 0=25-17-\mathrm{F} \\ \therefore & \mathrm{ F}=8 \mathrm{ N} . \end{array}
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