math

posted by .

A stone was dropped off a cliff and hit the ground with a speed of 160 ft/s. What is the height of the cliff?

Take the free fall acceleration to be 32ft/s^2


h= _______ft?

vfinal^2= 2gh you are given g, and vfinal.

A stone was dropped off a cliff and hit the ground with a speed of 160 ft/s. What is the height of the cliff?

Take the free fall acceleration to be 32ft/s^2

From Vf^2 = Vo^2 + 2gh,

160^2 = 0 + 2(32)h ---> h = 20 feet.

  • math -

    400

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Calculus/Physics

    A stone is thrown from a cliff top with an upward velocity of 20 m/s. It takes 7 seconds for the stone to hit the ground at the bottom of the cliff. How high is the cliff?
  2. Physics

    At t = 0, a stone is dropped from a cliff above a lake; 2.0 seconds later another stone is thrown downward from the same point with an initial speed of 33 m/s. Both stones hit the water at the same instant. Find the height of the cliff.
  3. physics

    At t = 0, a stone is dropped from a cliff above a lake; 2.1 seconds later another stone is thrown downward from the same point with an initial speed of 33 m/s. Both stones hit the water at the same instant. Find the height of the cliff
  4. physics

    A stone falls from rest from the top of a cliff. A second stone is thrown downward from the same height 3.3 s later with an initial speed of 64.68 m/s. They hit the ground at the same time. The acceleration of gravity is 9.8 m/s2 . …
  5. Physics 1

    At t = 0, a stone is dropped from a cliff above a lake; 1.3 seconds later another stone is thrown downward from the same point with an initial speed of 33 m/s. Both stones hit the water at the same instant. Find the height of the cliff. …
  6. science

    a stone is thrown vertically upwards fron the edge of a cliff of height 100m, with a velocity of 9m/s. The stone then fall to the ground(the foot of the cluff). Determine the total time the stone will take to hit the ground
  7. Math

    A stone was dropped off a cliff and hit the ground with a speed of 112 ft/s. What is the height of the cliff?
  8. Math

    A stone was dropped off a cliff and hit the ground with a speed of 120 ft/s. Using the fact that acceleration due to gravity is −32ft/s2, what is the height (in feet) of the cliff?
  9. physics

    A stone is dropped from a cliff 100 ft. high. Disregarding friction; a. how long does it take the stone to hit the ground?
  10. physics

    a stone is dropped from a cliff 100 ft high .disregarding friction; a.how long does it take the stone to hit the ground b.With what speed and direction does it strike the ground?

More Similar Questions