The height in feet of the projectile seconds after lunch is modeled by the equation h=32t - 16t2 how long after launch does the
projectile return to the ground
1 answer:
When h=0 is when it returns to the ground
solve
0=32t-16t^2
factor
0=16t(2-t)
set equal to zero
0=16t
0=t
0=2-t
t=2
at t=0 and 2
it returns after 2 seconds
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