h(t) = 80t - 16t²
Ground level is h(0) = 0
We want to solve for t:
h(t)= 0
80t - 16t² = 0
16t(5 - t) = 0
t = 0 or t = 5
Answer: 5 seconds
Answer:
6
Step-by-step explanation:
hx9x2t25 has the fastest rate