psyhics

posted by .

A ball is dropped from the top of a 95 m building. With what speed does the ball hit the ground?

  • psyhics -

    The kinetic energy when it hits the ground equals the initial potential energy.

    M*g*H = (1/2)MV^2

    V = sqrt(2 g H)

    H is the initial height and g is the acceleration of gravity.

    Aerodynamic friction has been neglected. The true velocity will be slightly less

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    A 3.00 kg ball is dropped from the roof of a building 176.4 m high. While the ball is falling to Earth, a horizontal wind exerts a constant force of 12.0 N on it. a.)How far from the building does the ball hit the ground?
  2. physics - HELP ASAP!

    A 3.60 kg ball is dropped from the roof of a building 184.8 m high. While the ball is falling to earth, a horizontal wind exerts a constant force of 12.1 N on the ball. (acceleration of gravity = 9.81 m/s^2) How far from the building …
  3. physics

    A 2.99 kg ball is dropped from the roof of a building 161.9 m high. While the ball is falling to Earth, a horizontal wind exerts a constant force of 12.3 N on the ball. How long does it take to hit the ground> The acceleration of …
  4. Physics

    A 3.79 kg ball is dropped from the roof of a building 163.8 m high. While the ball is falling to Earth, a horizontal wind exerts a constant force of 11.5 N on the ball. It takes 5.77 second to hit the ground. How far from the building …
  5. Physics

    Would someone please show me a way to work this out A ball is dropped from the top of a building 150 m high. (Ignore air resistance) A. How long does it take the ball to hit the ground?
  6. physics

    a tennis ball is dropped from the top of 12.2 m tall building. b) how long does it take for the ball to hit he ground?
  7. Physics

    A 2.98 kg ball is dropped from the roof of a building 158.3 m high. While the ball is falling to Earth, a horizontal wind exerts a constant force of 13.1 N on the ball. A.)How long does it take to hit the ground?
  8. ap physics

    a ball 1 is thrown horizontally from the top of a building that is 50 meters tall. if another ball 2 is dropped at the same time as the first is released, which ball will hit the ground first?
  9. Physic

    A ball B1 is dropped from the top of a building, one second later another ball, B2 is thrown down with an initial speed of 20.0m/s. The two balls hit the ground at the same time. 1)What is the time it took B1 to teach the ground?
  10. physics

    A 2.63 kg ball is dropped from the roof of a building 180.6 m high. While the ball is falling to Earth, a horizontal wind exerts a constant force of 13.0 N on the ball. How long does it take to hit the ground?

More Similar Questions