Energy

A 2 kg bead slides on a curved wire, starting from rest at a point A as shown. If the wire is frictionless, find the speed of bead at points B and C.

According to the figure find; a. The maximum height that object can rise. b. The height of the object when it has a velocity of 3m/s.

A 80kg man is on a building 20 m above the surface of the ground. How much gravitational potential energy does the man have relative to the surface of the ground?

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