The correct answer to the question is 1900 Joule.
CALCULATION:
As per the question, the velocity of the car v = 20.0 m/s.
The time taken by the car t = 15 seconds.
The initial force applied on the car F = 95 N.
We are asked to calculate the power of the car.
Let the displacement of the car is denoted as S.
Let the power of the car is P.
The power of a car is defined as the word done by the car per unit time.
Hence, the power P = [tex]\frac{W}{t}[/tex]
= [tex]\frac{\vec F.\vec S}{t}[/tex]
= [tex]\vec F.\frac{S}{t}[/tex]
= [tex]\vec F.\vec v[/tex]
= [tex]Fvcos\theta[/tex]
Here, [tex]\theta[/tex] is the angle between force and velocity.
If [tex]\theta= 0^{0}[/tex], then P = Fv.
Hence, the power of the car is calculated as -
P = 95 N × 20.0 m/s
= 1900 Joule.
