For each of the following figures, draw the free-body diagrams and find the acceleration of mass m 3 . Assume that masses and angles are known quantities and strings are massless and stretchless.
All surfaces are frictionless.
Determine the distance, d, at which the block lands given that the end of the ramp is a known distance h above the floor. An artillery crew demonstrates its skill by firing a shell at angle theta 1 and then lowering the gun barrel and firing a second shell at a smaller angle theta 2 in such a way that the two shells collide in midair. Neglecting air resistance, show that the two shells must be fired with an elasped time between them of where v 0 is the initial velocity at which the shells are fired.