Problem: A uniform bar (I = 1/3 ML2 for an axis at one end) has mass M = 8.00 kg and length L = 6.00 m. The lower end of the bar is attached to a wall by a frictionless hinge. The bar is held at an angle of 30.0° above the horizontal by a wire that is attached between the upper end of the bar and the wall. The wire makes an angle of 53.1° with the bar. If the wire breaks, what is the initial acceleration (in rad/s 2) of the bar, just after the wire breaks?  

FREE Expert Solution
94% (2 ratings)
Problem Details

A uniform bar (I = 1/3 ML2 for an axis at one end) has mass M = 8.00 kg and length L = 6.00 m. The lower end of the bar is attached to a wall by a frictionless hinge. The bar is held at an angle of 30.0° above the horizontal by a wire that is attached between the upper end of the bar and the wall. The wire makes an angle of 53.1° with the bar. If the wire breaks, what is the initial acceleration (in rad/s 2) of the bar, just after the wire breaks?

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Torque & Acceleration concept. If you need more Torque & Acceleration practice, you can also practice Torque & Acceleration practice problems.

How long does this problem take to solve?

Our expert Physics tutor, Jeffery took 4 minutes and 39 seconds to solve this problem. You can follow their steps in the video explanation above.