Ask Question
19 June, 09:40

A stone is dropped from the roof of a tall building. A person measures the speed of the stone to be 49 m/sec when it hits the ground. The height of the building is closest to:

Select one:

a. 24 meters.

b. 49 meters.

c. 122 meters.

d. 245 meters.

+2
Answers (1)
  1. 19 June, 11:34
    0
    V^2 = u^2 + 2gh

    since the stone is dropped, the initial speed is 0.

    v^2 = 2gh

    49^2 = 2 x 9.8 x h

    h = 2401 / 19.6 = 122.5 meters

    The height of the building is closest to 122 meters.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “A stone is dropped from the roof of a tall building. A person measures the speed of the stone to be 49 m/sec when it hits the ground. The ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers