Question

A car, starting from rest, accelerates in the +x direction as in the figure. It has a mass of 1.10 × 10³ kg and maintains an acceleration of +4.30 m/s² for 4.10 s. Assume that a single horizontal force (not shown) accelerates the vehicle. Determine the average power generated by this force.

Answer 1

^{The solution of the problem is provided in the image given below}

^{Date Ginen mass ma 1. Lox 103 kg deceleration a - 4.3 m/sh time st = 4.1os Average lower e T Total work done w rest Work done a Force & desplacement along the Here For Fz ma - 2 4-3 x ). 10 x 10? - F2 4.7×103 N Displecement along time - Du ut tt att here uza (initial velocity) Du = tx 4.3 * (4.10² De = 36.1 m - (3) hong 2 and (3) I work done = F x an - 2 4.7 x 103 x 36.1 = 169.67× 103 J - W. Average power using (1) and (4) live work done . At 169.67 xlo 4.10 I P = 41.38×103 = 4.14x10" W/}