Question

solve it...its a brainlist question​

Answer 1

Answer:

40 m/s is the answer

Explanation:

where, TME (A) is the total mechanical energy at point A.

TME (B) is the total mechanical energy at point B.

This question is solved by the law of conservation of mechanical energy.

Law of conservation of mechanical energy

Energy can neither be created nor be destroyed , it only can be converted from one form to another form.

Conservation of mechanical energy

The total energy of a system and the total kinetic energy of all constituent bodies together is known as mechanical energy of the system . If E , K, and U respectively denote the total mechanical energy , total kinetic energy , and total potential energy of a system in any configuration we have :

E = K + U

Answer 2

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here is your answer