drakevtran8200 drakevtran8200
  • 13-05-2020
  • Mathematics
contestada

An object at a height of 24 feet is thrown upward with an initial velocity of 8 feet per second. When will the object hit the ground?

Respuesta :

DeanR
DeanR DeanR
  • 13-05-2020

We put the acceleration of gravity, the initial velocity and the initial height all together to get our formula for height as a function of time:

y = -16t² + 8t + 24

We want to know when y=0

0 =  -16t² + 8t + 24

0 =  2t² - t - 3

0 = (t + 1)(2t - 3)

t= -1 or t=3/2

We reject the negative root.

Answer: 1.5 seconds later

Answer Link

Otras preguntas

which behavior is an example of poor self esteem
The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. Find the number.
_____is the ideal that all people should be treated equally. A. Rule of law B. Representative government C. Limited government The bill of rights and the decla
Can someone please help me with this?!
Outdoor and indoor equipment must include A. only toys that are soft. B. equipment that is age-appropriate and developmentally appropriate. C. areas t
4a^2-17a+4 factor polynomial
[WILL GIVE BRAINLIEST - 40 POINTS] Can someone answer these questions FULLY in French. Merci! qui était ton meilleur ami/ta meilleure amie, et comment était ce
Which sentence best describes the effect of the bill of rights?A.It gave parliament the right to elect a successor when a monarch died.B.It ensured that no Mona
What color does Sam obtain when he mixes white with a color? Sam is painting a landscape and needs to paint the sky light blue. He mixes blue and white to obtai
Why was it difficult fpr Unions to succeed in the 1800s