A plank of length l and mass m is standing vertically on a frictionless surface. The plank starts to fall at t = 0. Assuming conservation of energy,
(a) calculate the angular velocity of the plank when it makes an angle θ from the
surface.
(b) Calculate the angular velocity just before the center of mass hits the floor (rod
becomes completely horizontal).
(a) calculate the angular velocity of the plank when it makes an angle θ from the
surface.
(b) Calculate the angular velocity just before the center of mass hits the floor (rod
becomes completely horizontal).
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