Mass of Inertia and Angular Acceleration.

1. Two slender rods are welded together at right angles and released from rest as shown. The two welded bars rotate freely around point C. Each bar is 10 lbs and is 1.5 ft long. At release, what is the acceleration magnitude of point B? Please see attached for other 3 qustions and question 1 in full.

3 problems

Three problems having to do with moment of inertia. I have solved one of them completely thought i need to make sure i did the right thing. The other two i need help setting up. Please send solutions and answer so i can see how your answer was achieved. I would prefer OTA ID#: 103642 to solve these problems. If he does not respond with in a day. It will then be open to any OTA.

4 problems

4 problems in dynamics. These following are review questions for final exam coming up in 2 weeks. 1. Find the total energy of the system at the given instant if the 20 kg disc has an angular velocity of 24 rad/s (clockwise), the bar AB has a mass of 2 kg, and the system is 1.5 meters above the ground. Assume the ground as the datum line (zero potential energy). a. 353 J b. 389 J c. 294 J d. 323 J e. 429 J 2. A cylinder is pulled up a plane by the tension in a rope which passes over a frictionless pulley and is attached to a weight of 150 lb as shown. The cylinder weighs 100 lb and has a radius of 2 ft. The radius of the pulley is 4 ft. The cylinder moves from rest... click for more

Angular Velocity;

1. The slender bar with a mass of 4 kg is released from rest at an angle of 35 degrees. What is the angular velocity of the bar when it is vertical? a. 0.667 rad/s b. 1.06 rad/s c. 0.888 rad/s d. 1.74 rad/s e. 2.31 rad/s 2. The stepped disk weighs 50 lb and its mass moment of inertia about its center is I = 0.4 slug-ft2. If it is released from rest, determine its angular velocity when it falls 3 ft. The rope does not stretch. a. 22.9 rad/s b. 10.2 rad/s c. 8.20 rad/s d. 32.2 rad/s e. 15.7 rad/s 3. An assembly consists of two 15-lb slender rods and a 20-lb disk. The spring is unstretched when θ = 45º and the assembly is released from r... click for more

5 problems

A 1.62 oz golf ball with a 1.70 in. diameter is hit by a club at point P. Velocity magnitude of the ball's center of mass is 180 ft/s after the impact. What is the angular velocity of the ball? (h = 0.2 in.) Please see attached for full question.