Question

if a force of 10 Newton is applied on a block and it moves a distance of of 2 m in same direction then work of 20 joules is done on the block to do this work exactly 20 joules of energy is required the block will get lifted up and it will gain potential energy the energy gained by the block will be equal to 20 joules which is same as energy spent the body which does work loses the energy and equal amount of energy is gained by the body on which work is getting done thus effectively there is neither loss nor creation of energy the total quantity of energy always remains constant this is called law of conservation of energy.
Please explain meaing of this paragraph​

Answer 1

Answer:

the first part does not make sense sir.

the second one says about conservation of momentum. the total energy remains conserved on both the sides.

Explanation:

hope it is helpful..