Y=20 X=10 make this brainliest ❤️
Step-by-step explanation:
T = time in seconds
H = distance
Tground = time to return to ground
Tmax = time at maximum height
H = -16T^2 + 672T...eqn 1
projectile returns to ground at H =0,
subs for H in eqn 1...
0 = -16T^2 + 672T
solving for T we get...
16T^2 = 672T
=> Tground = 42secs
Tmax = 0.5 Tground = 21secs
400, 650, 675, 680, 690, 700, 800, 825, 840, 850, 1050
alukav5142 [94]
Answer: i belive it's D
Step-by-step explanation:
Three plus three equals six :)
