A car can accelerate from 0 to 60 m/s' in 8.5 seconds. a. What is the car's top speed in m/s?

b. What is the acceleration of the car?
c. If the car were to maintain the acceleration in 2b, how long would it take to reach 70 m/s fron
rest?

Ithink it is letter b, i may be wrong but i think that is the answer

Answer(a)   the matererials that are in contact, the two materials and the nature of their surfaces/// (b)/// the force pushing the two surfaces together, pushing the surfaces together causes the more of the asperities to come together and increases the surface area in contact with each other

F= (mass)(acceleration) = mam = 0.25 kgvi = 16 m/st = 2 svf = 0 m/s (since it was put to stop)a=(vf-vi)/ta=(0-16)/2a = 8 m/s^2 (decelerating)f = ma = (0.25 kg)(8 m/s^2)f = 2 nhope this !