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A body of mass 25kg changes its speed from 15m/s to 35m/s in 5 seconds by the action of ...

A body of mass 25kg changes its speed from 15m/s to 35m/s in 5 seconds by the action of an applied force F. Find the value of F.
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  • A 100N
  • B 375N
  • C 500N
  • D 600N
Correct Answer: Option A
Explanation:
\(F = ma = m(\frac{v - u}{t})\)
\(F = 25(\frac{35 - 15}{5}) = 25 \times 4 = 100N\)

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