A car accelerates uniformly from rest to 27.2 m/s in 8.30 s along a level stretch of road. Ignoring friction, determine the average power required to accelerate the car if (a) the weight of the car is 8.26 x 103 N, and (b) the weight of the car is 1.08 x 104 N.

(a) : The power required to accelerate the car is F = 2756.12 N.

(b) : The power required to accelerate the car is F = 3603.67 N.

Explanation:

V = 27.2 m/s

Vi = 0 m/s

t = 8.3 s

g = 9.8 m/s²

W1 = 8.26 * 10³ N

W2 = 1.08 * 10⁴ N

a = (V-Vi) / t

a = 3.27 m/s²

m1 = W1/g

m1 = 842.85 kg

m2 = W2/g

m2 = 1102.04 kg

F = mi*a

F1 = 2756.12 N (a)

F2 = 3603.67 N (b)