Post a New Question

Physics

posted by on .

A rock is dropped from a sea cliff and the sound of it striking the ocean is heard 3.7 s later. If the speed of sound is 340 m/s, how high in meters is the cliff?

  • Physics - ,

    Let H be the height of the cliff. The time to hear the sound of hitting the water is
    t = t1 + t2, where t1 is the time it takes to hit the water and t2 is the additional time for the sound to arrive at the top of the cliff.

    H - (1/2) g t1^2
    t1 = sqrt (2H/g)
    t2 = H/V
    where V is the speed of sound in air. (Look it up).
    Solve t1 + t2 = 3.7 for H

  • Physics - ,

    A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 3.1s later.

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question