Starting from rest, a truck travels in a straight line for 7.0 swith a uniform acceleration of +1.6 m/s2. The driver then appliesthe brakes for 3.0 s, causing a uniform acceleration of −2.0 m/s2over that time. (a) What is the truck's speed at the end of thebraking period? (b) What is the total distance traveled by thetruck (from the point where it started at rest to the end of thebraking period)