1.

(i) Define the term 'energy' of a body. What is the SI unit of energy?(ii) What are the various forms of energy?(iii) Two bodies having equal masses are moving with uniform speeds of v and 2v, respectively. Find the ratio of their kinetic energies.

Answer» (i) Define the term 'energy' of a body. What is the SI unit of energy?

(ii) What are the various forms of energy?

(iii) Two bodies having equal masses are moving with uniform speeds of v and 2v, respectively. Find the ratio of their kinetic energies.


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