A plank with a body of mass m placed on it starts moving straight up according to the law y = a (1 — cos wt), where y is the displacement from the ini...

A plank with a body of mass m placed on it starts moving straight up according to the law y = a (1 — cos wt), where y is the displacement from the initial position w = 11 /s. Find:
(a) the time dependence of the force that the body exerts on the plank if a = 4.0 cm; plot this dependence;
(b) the minimum amplitude of oscillation of the plank at which the body starts falling behind the plank;
(c) the amplitude of oscillation of the plank at which the body springs up to a height h = 50 cm relative to the initial position (at the moment t = 0).

Anonymous User Physics Oscillation 02 May, 2020 60 views

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