What is the acceleration of a car that increases its velocity from 0 to +14m/s in 10s?

1.4m/s², increase in velocity divided by the time it took yeilds the acceleration. Acceleration is 14m/s ÷ 10s = 1.4m/s²

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.