The slender bar weighs 40 lb, and the crate weighs 80 lb. At the instant shown, the veloci...

The slender bar weighs 40 lb, and the crate weighs 80 lb. At the instant shown, the velocity of the crate is zero and it has an acceleration of 14 ft/s2 toward the left. The horizontal surface is smooth. Determine the couple M and the tension in the rope.