Question
How long will it take a shell fired from a cliff at an initial velocity of 800 m/s at an angle 30 degrees above the horizontal to reach the ground 150 meters below?
Answers
dfrwls
The equation you have to solve is
80 sin 30 t - (g/2) t^2 = -150
which can be rewritten
40 t - 4.9 t^2 = -150
80 sin 30 t - (g/2) t^2 = -150
which can be rewritten
40 t - 4.9 t^2 = -150
Anonymous
0.37