science

posted by .

a ball is dropped from the roof of a building. it takes 10 seconds to reach the ground. find the height of the building.(g=9.8/s square)

  • science -

    h=gt^2/2

  • science -

    490.5

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. 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 …
  2. Science

    A ball dropped from the roof of a building take 4s to reach the street. How high is the building?
  3. science

    An object is dropped off of a 27 meter tall building. How long is it in the air before it hits the ground?
  4. physics, please help me, this question is hard

    John Stands at the edge of a flat roof of a three story building and throws a 180g ball straight up into the air that reaches a height of 3.0 meters above the roof. ( building is 14 meters high) A. What is the initial speed of the …
  5. Physics

    A baseball is dropped from a tall building and takes 4.1 seconds to hit the ground. From what height was the ball dropped?
  6. Physics

    A ball is dropped from a roof of a building and strikes the ground in 3 seconds. If a second ball is thrown horizontally from the roof, it will hit the ground in:
  7. physical

    A ball is dropped from the roof a building which is 256m high.The height h of the ball at any instant t is described by h(t)= -16tsqure+256 Find 1)Instantaneous velocity of ball at t= 3sec 2)The time taken by ball to reach the ground …
  8. physic

    A ball is dropped from the top of an apartment building. A person is on a patio somewhere beneath the top of the apartment building and the person notices the ball takes 0.11 seconds to fall from the top of his patio to the bottom …
  9. math

    A ball is dropped from the roof a building which is 256 m high. The height h of the ball at any instant t is described by h(t) = – 16t2 + 256 Find i) Instantaneous velocity of ball at t = 3 seconds ii) The time taken by ball to reach …
  10. Physics

    A ball is thrown horizontally from the building roof at a speed of 20 m/s. Takes ball 4 seconds to reach the ground. How tall is building?

More Similar Questions