13. Rotational Inertia & Energy
Conservation of Energy with Rotation
2PRACTICE PROBLEM
A rigid, uniform bar is attached by its lowest end to a frictionless horizontal hinge. The bar is initially perpendicular to the horizontal plane. The bar of length 1.0 m and mass 0.250 kg is released from rest and rotates in a vertical plane. Calculate the speed of the highest end of the bar when it reaches the horizontal plane.
A rigid, uniform bar is attached by its lowest end to a frictionless horizontal hinge. The bar is initially perpendicular to the horizontal plane. The bar of length 1.0 m and mass 0.250 kg is released from rest and rotates in a vertical plane. Calculate the speed of the highest end of the bar when it reaches the horizontal plane.