Post a New Question


posted by .

A child drops a ball onto the road 28 m in front of a car travelling at 50 km/h. If the car can decelerate at a rate of 3.5 m/s2, will it stop before hitting the ball?

  • Physics -

    Vc = 50km/h = 50000m/3600s = 13.89 m/s.

    d = (Vf^2-Vo^2)/2a.
    d = (0-(13.89)^2) / -7 = 27.56 m.

    Yes, it will stop before hitting the ball; but it will be very close!

Answer This Question

First Name
School Subject
Your Answer

Related Questions

More Related Questions

Post a New Question