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