Falling objects drop with an average acceleration of 9.8 m/sec/sec, or 9.8 m /s2. If an object falls from the top of a tall buil

Question

Dmitrij [34]

3 years ago

9

Falling objects drop with an average acceleration of 9.8 m/sec/sec, or 9.8 m /s2. If an object falls from the top of a tall buil

ding, how long will it take before it reaches a speed of 49 m/sec?

Physics

1 answer:

Lena [83] · Answer 1 · 2022-08-17T11:16:19+03:00

Lena [83]3 years ago

5 0

Use the velocity expression for uniform acceleration and solve for t: v = v0 + at. v0 is zero since the object is at rest. 49 m/s = a(t), and solve for t. t = 49 m/s / 9.8 = 5 seconds.