Answer:
y = ax + b
This line passes (0,0) => b = 0
This line passes (10,60) = > 10a =60 => a = 6
=> y = 6x
The total time of flight of a projectile motion is calculated through the equation,
t = 2v₀sinФ/g
Substituting the known values,
t = (2)(12 m/s)(sin 90)/9.8 m/s²
t = 2.45 s
Thus, the total flight time of the ball in the atmosphere is 2.45 s.
The answer to your question is b
5(18-1)-(6+30)
85-36 = 49
Your answer if 49
