Question

Please I need a fast verified answer

A trailer is pulling a car with a force of 900N on a level road .The car is moving at 70km/h.How much work is done by the trailer on the car in 15mns.​

Answer 1

1.575 x 10^7 J

Step-by-step explanation:

70 km/h = 19.44 m/s

15 mins = 900 s

The first step is to fins the distance travelled. We are given a velocity and a time, so we can solve for distance.

v = d / t ∴ d = vt = (19.44) (900) = 17496 m

Using the equation for work given by W = Fd, we can substitute in the given values.

W = Fd = (900) (17496) = 1.575 x 10^7 J