AP Physics 1· difficulty 3/5
A beam is hinged at one end and hangs vertically. A horizontal force is applied at its other end, from the hinge. The torque about the hinge is
Explanation
. The angle between the (vertical) lever and the (horizontal) force is , so : .
Want 10 more like this — adaptive to your weak spots?
A uniform 100 N beam of length 4 m rests on a pivot at its center. A 60 N weight hangs from one end. To keep the beam horizontal, you must apply a downward forc…
chevron_rightA uniform 4.0 m beam of mass 10 kg is supported by a pivot 1.0 m from one end. To balance, what mass should be hung at the closer end? (g = 10 m/s²; treat beam …
chevron_rightA uniform 20\text{kg} horizontal beam of length L = 4\text{m} is hinged at its left end. A vertical rope at the right end supports it, and a 40\text{kg} weight …
chevron_right