A 24N force acts on a body such that it changes its velocity from 5m/s...
FURTHER MATHEMATICS
WAEC 2015
A 24N force acts on a body such that it changes its velocity from 5m/s to 9m/s in 2 secs.If the body is travelling in a straight line, calculate the distance covered in the period.
- A. 22m
- B. 18m
- C. 14m
- D. 10m
Correct Answer: C. 14m
Explanation
\(a = \frac{v - u}{t} = \frac{9 - 5}{2} = 2 ms^{-2}\)
\(s = ut + \frac{1}{2}at^{2} = 5(2) + \frac{1}{2}(2 \times 2^{2})\)
= \(14m\)
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