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Describe conservation of energy and non-conservative forces. (use equation and words)

Describe conservation of energy and non-conservative forces. (use equation and words)

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Answer #1

Conservation of energy- energy can nither be created nor be destroyed, it can only trasnformed from one form to other.

When we drop a ball of mass m from height h

Its unitial energy is mgh and final just above ground will be 1/2mv2

Due to conservation of energy mgh=1/2mv2 +losses

Here losses are in the form of heat due to air friction and is negligible.

Non conservative force are those whose work is path dependent. Here initial and final energy cant be same.

Best example is friction force as loss here depends on distance trevelled.

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