Sally asked in Science & MathematicsPhysics · 5 months ago

Objects accelerate at 9.8 m/s2 [down] when falling?

 (a) How long does it take an object dropped from rest (from the top of a tall building) to reach a velocity of 15 m/s [down]? (b) How far does the object fall during that time?

1 Answer

  • alex
    Lv 7
    5 months ago


    v = u + gt , object dropped from rest --->u = 0 , g = gravity = 9.8m/s^2

    height h = (1/2)gt^2

Still have questions? Get your answers by asking now.