To calculate the average power required to
accelerate the car, we can follow these steps:
Use the work-energy principle
The work done to accelerate the car is
equal to the change in kinetic energy. The car starts from rest, so the initial
kinetic energy is zero, and the final kinetic energy is given by:
where:
(mass of the car),
(final speed of the
car).
Substitute the values:
Thus, the work done to accelerate the car
is .
Calculate the time taken to accelerate
We know that the car accelerates uniformly
over a distance of 500 meters. We can use the kinematic equation:
where:
(initial speed),
(final speed),