17-09-2022
Physics

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A iron crowbar weighing 85 N is lying on the ground. What force is required to lift one end of it?

Respuesta :

17-09-2022

Answer:

F L = W * L/2

F = W / 2 = 42.5 N

The crowbar is uniform and can be replaced by a point mass of 85 N at distance of L/2 and the applied force is at a distance of L

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