A drag racer, starting from rest, speeds up for 402 m with an acceleration of +24.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.40 m/s2. How fast is the racer moving 3.75 102 m after the parachute opens?

Question

A drag racer, starting from rest, speeds up for 402 m with an acceleration of +24.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.40 m/s2. How fast is the racer moving 3.75  102 m after the parachute opens?

Damon · Answer

Please post your attempt at solution.

kelly · Answer

x=1/2(vo+v)t

tina · Answer

vo1 +1/2at2 and vo2 +t i just don't know what numbers to put where