If a car's engine provides a driving force,

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

F

, and the car travels a distance,

s

, at a speed,

v

, during a time,

t

, which of the following statements about the power,

P

, developed by the engine is correct: (1)

P = \frac{Fs^2}{t}

(2)

P = Ft

(3)

P = Fv

(4)

P = \frac{Fv^2}{2}