A certain 800-kg car has a motor whose power output is
30 kW. If the car is carrying two passengers whose total mass
is 150 kg, how long will it need to accelerate from 70 to 110
km/h?

Respuesta :

Based on the relationship between power and time, the time required is 10.67 seconds

What is the time required for the car to accelerate from 70 to 110 km/h?

Force produced by the car = mass × acceleration

Force produced by the car engine = 30 kW = 3000 kW

mass of car = 800 Kg

acceleration of car = changein velocity / time

acceleration = 110 - 70/t = 40/t

3000 = 800 × 40/t

t = 32000/3000

time, t = 10.67 seconds

Therefore, the time required is 10.67 seconds

Learn more about time taken at: https://brainly.com/question/4931057

RELAXING NOICE
Relax