A car is coasting backwards downhill at a speed of 2.6 m/s when the driver gets the engine started. After 2.5 s, the car is moving uphill at 4.6 m/s. Assuming that the uphill is the positive direction, what is the car's average acceleration?
1 answer
a=changeV/time=(4.6-(-2.6))/2.5=you do it.
2 answers