An M-1 Abrams tank main gun fires a projectile as shown in the figure. Upon exit...

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An M-1 Abrams tank main gun fires a projectile as shown in the figure. Upon exit from the bun barrel, the projectile moves with a speed v, = 6000 ft/s relative to the gun barrel. The length of the barrel is L = 15 ft. Assuming that the angle 0 is increasing at a constant rate of 0.15 rad/s, determine (a) the speed of the projectile right when it leaves the barrel. (b) the magnitude of the acceleration upon exit (assume that the projectile acceleration along the barrel is constant and that the projectile starts from rest). An M-1 Abrams tank main gun fires a projectile as shown in the figure. Upon exit from the bun barrel, the projectile moves with a speed v, = 6000 ft/s relative to the gun barrel. The length of the barrel is L = 15 ft. Assuming that the angle 0 is increasing at a constant rate of 0.15 rad/s, determine (a) the speed of the projectile right when it leaves the barrel. (b) the magnitude of the acceleration upon exit (assume that the projectile acceleration along the barrel is constant and that the projectile starts from rest).