Q1. In the 1950s, an experimental train that had a mass of 2.30 x 10^4 kg was powered across a level track by a jet engine that produced the thrust of 5.30 x 10^5 N for a distance of 504 m. unless otherwise directed, suppose that air resistance is negligible.
Q2. A car travelling east at 43.0 m/s passes a trooper hiding at the roadside. The driver uniformly reduces his speed to 24.0 m/s in 2.70 s.
(a) what is the magnitude and direction of the car's acceleration as it slows down?
(b) How far does the car travel in 2.90-s time period