A ball is thrown from ground level straight up into the air at an intitial velocity of 54 feet per second. The height of the bal

Question

3 years ago

10

l t seconds after it is thrown is given by the formula h(t)=54t-16’2. How many seconds after the ball is thrown will it return to the ground

1 answer:

bonufazy [111] · Answer 1 · 2022-07-18T12:59:08+03:00

3 0

Answer:

3 3/8 seconds.

Step-by-step explanation:

When it reaches the ground h = 0 so:

54t - 16t^2 = 0

16t^2 - 54t = 0

2t(8t - 27) = 0

t = 0 or t = 27/8 (we ignore the t = 0 ) so:

t = 3 3/8 seconds.