How Do You Find Initial Velocity And Angle Of Inclination In Projectile Motion?
1.) You need to know the speed of the helicopter, because that will be the initial horizontal speed of the bomb, the initial vertical speed will be zero, so I’m gonna have to give the answer in terms of the helicopter’s velocity First of all you calculate data on the bomb, I will use the subindex b to distinguish the bomb from the projectile for which i will use the subindex p The first step is to calculate the time that the bomb will take to reach the 400m of altitude, and that depends only on gravity, since there is no vertical acceleration yb = Viyb*t – (1/2)g*t^2 Viyb is the initial velocity in the vertical direction and it is 0 so yb = -(1/2)g*t^2 You solve for t t = sqrt(-2yb/g) t = sqrt(-2*{-400}/9.81) Here y = -400 because the origin of the reference system is in the helicopter and below it you are in the negative side of the “y” axis t = 9.03047282 s With this time you calculate the horizontal distance xb = Vxb*t Vxb is the helicopter’s velocity which is the bomb’s initial hor
