A body of mass 8kg moving with a speed of 30ms -1 is brought to...
PHYSICS
WAEC 2004
A body of mass 8kg moving with a speed of 30ms-1 is brought to rest in 2.5s by a constant retarding force. Calculate the magnitude of the force
- A. 240N
- B. 96N
- C. 20N
- D. 9N
Correct Answer: B. 96N
Explanation
F = ma = \(\frac{mv}{t} = \frac{8 \times 30}{2.5} = 96\)
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