Physics Question?

Question

A mechanic pushes a 3253 kg car from rest to a speed of v, doing 3996 J of work in the process. During this time, the car moves 23 m.
a) Neglecting friction between the car and the road find v.
b) Find the horizontal force exerted on the car.

Answer 1

are you sure that your question is complete ?

if so then :

A = F*s => F = A/s = 3996/23 = 173.739N
F = m*a => a = F/m = 173.739 / 3253 = 0.0534 m/s^2
v_1^2 - v_o^2 = 2a*s ( _ here is subscript)
v_0 = 0 => v_1 = square root of (2a*s) = square root of ( 2 * 0.0534 * 23 ) = 1.567 m/s