Question

The height h, in feet, of a projectile t seconds after launch is modeled by the equation h = 32t – 16t2. How long after launch does the projectile return to the ground?

2 seconds
4 seconds
14 seconds
16 seconds

Answer 1

Answer:

2 seconds

Step-by-step explanation:

given

h=32t-16t²

for t=1

h=32(1)-16(1)=16feet

for t=2

h=32(2)-16(4)=64-64=0

therefore after 2 seconds of it's flight it will return to the ground.

hence answer is 2 seconds.

Answer 2

Answer:

therefore after 2 seconds of it's flight it will return to the ground. hence answer is 2 seconds.