To keep a vehicle moving at a constant speed v, requires power P, from the engine. The force provided by the engine is
-
\(\frac{p}{v}\)
- \(\frac{1}{2}\) v
- pv
- \(\frac{p}{v^2}\) v
The correct answer is: A
Explanation
power = speed x forceforce = \(\frac{power}{speed}\)