Physics
JAMB 1990
To keep a vehicle moving at a constant speed v, requires power P, from the engine. The force provided by the engine is
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A.
\(\frac{p}{v}\)
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B.
\(\frac{1}{2}\) v
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C.
pv
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D.
\(\frac{p}{v^2}\) v
Correct Answer: Option A
Explanation
power = speed x force
force = \(\frac{power}{speed}\)
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