Question

A cars engine gives the car a forward force of 3100N. Because of air resistance, the car does not accelerate, but rather moved forward at a so stent. Elocutions of 34m/s. What is the output power of the cars engine.

Help a guy out? Help me understand.

Answer 1

3100

Step-by-step explanation:

Because no extra force is implied for it to exalarate

Answer 2

110 kW

Step-by-step explanation:

Power = work / time

P = W/t

Work = force × distance

W = Fd

Substituting:

P = Fd/t

P = Fv

Given that F = 3100 N and v = 34 m/s:

P = (3100 N) (34 m/s)

P = 105,400 W

P = 105.4 kW

Rounding to two significant figures, the output power of the car's engine is 110 kW.