Question

A car of mass 300 kg is travelling along a horizontal road with a speed of 10m/s.The acceleration of car is 4/3 m/s. A resistive force of 100 N is opposing its motion. Find the power generated by the engine of the car.​

Answer 1

Answer:

Power generated by the engine of the car is ​5000W

Explanation:

Given in the question that,

mass of a car = 300 kg

speed of the car = 10m/s

acceleration of the car = 4/3 m/s²

Step 1

Calculate Force exerted by engine

Force = ma

           = (300)(1.3)

           = 400 N

Step 2

Calculate resultant force

Resultant Force = 400N + 100N = 500N

Step 3

Calculate power

P = W/t = Fd/t = Fv

P = 500*10 = 5000W