Question

Verify the principle of conservation of mechanical energy taking example of freely falling body​

Answer 1

Answer:

Sustainable development is important for economic growth because: (i) Environment must be conserved while development is taking place. (ii) Resources must be used in such a way that something is conserved for future generations. (iii) The standard of living of all people must be raised.

Explanation:

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Answer 2

Answer:

If a body of mass m is in motion with speed v, then its kinetic energy is equal to K=12mv2. Let us now prove the conservation of the mechanical energy during a body falling freely. ... Hence, its kinetic energy will be K2=12mv2 and change in kinetic energy (ΔU) will be K2=12mv2.

Explanation:

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