Anonymous
Anonymous asked in Science & MathematicsPhysics · 1 month ago

Physics Homework Help? plz?

A train in Europe has an initial velocity of +50.0 m/s.

a) If while braking, the train underwent an acceleration of -2.00 m/s2 for 20.0 s,

what was the train’s braking distance?

b) What was the train’s velocity after the acceleration?

1 Answer

Relevance
  • NCS
    Lv 7
    1 month ago
    Favourite answer

    a) s = v₀t + ½at²

    s = 50.0m/s*20.0s - ½ * 2.00m/s² * (20.0s)²

    s = 600 m

    b) v = v₀ + at = 50.0m/s - 2.00*20.0s = 10.0 m/s

    If you find this helpful, please select Favorite Answer!

Still have questions? Get answers by asking now.