Posted by devin on Friday, March 12, 2010 at 9:21am.
Short projectile motion question
A German rocket from the second world war had a range of 3000meters reaching a maximum height of 1000meters.
Determine the rockets maximum velocity

math  tchrwill, Saturday, March 13, 2010 at 2:21pm
Vertical height h = V^2(sin^µ)/2g.
Horizontal distance = d = V^2(sin2µ)/g.
h = height, meters V = initial launch velocity, m/s, g = acceleration due to gravity, m/s^2s and µ = the elevation angle of the rocket measured from the horizontal to the launch directiion.
Thus, h = V^2(sin^2µ)/2g = 1000 and
......d = V^2(sin2µ)/g = 3000.
Solve for V^2, equate the results and solve for µ and then V.
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