Question

Leyla drops a penny from a height of 150 m. How long will it take the penny to hit the ground? Use the formula h(t)=−4.9t^2+vt+h , where v is the initial velocity and h is the initial height. Round to the nearest tenth of a second.

Answer 1

To determine the time it  takes for the penny to reach the ground, we use the relation of height and time given above. We do  as follows:

0 =−4.9t^2+(0)t+150
t = sqrt( 150/4.9)
t = 5.53 s

Hope this answers the question. Have a nice day.

Answer 2

Answer:

I believe the answer is 5.5

Step-by-step explanation: