In the position shown, the turret is rotating about the vertical axis at the constant rate...

 

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In the position shown, the turret is rotating about the vertical axis at the constant rate of 1.2 rad/s. At this instant the barrel is being raised at the rate of 0.6 rad/s, which is decreasing at 100 rad/s. The tank is at rest. Immediately preceding its emergence, a 30-lb cannon shell is traveling at a speed of 1500 ft/s relative to the barrel, and the internal propulsive pressure within the barrel has been dissipated. Determine the acceleration of the cannon shell at this instant, and the corresponding forces exerted by the cannon shell on the barrel. 1 1.2 rad/s 5 ft 10 ft 10 1500 ft/s In the position shown, the turret is rotating about the vertical axis at the constant rate of 1.2 rad/s. At this instant the barrel is being raised at the rate of 0.6 rad/s, which is decreasing at 100 rad/s. The tank is at rest. Immediately preceding its emergence, a 30-lb cannon shell is traveling at a speed of 1500 ft/s relative to the barrel, and the internal propulsive pressure within the barrel has been dissipated. Determine the acceleration of the cannon shell at this instant, and the corresponding forces exerted by the cannon shell on the barrel. 1 1.2 rad/s 5 ft 10 ft 10 1500 ft/s