Question

drive an formulae for kinetic energy of an object masa m velocity v​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

F = mass × retardation , F = m.a ..............(1)

Kinetic energy K = regarding force F × Displacement S.......... (2)

K = F × S

Now, to calculate S, we have,

initial velocity u = v

final velocity v = 0

Since a is the retardation, so acceleration = -a

From the relation, v{square}= u{square} + 2aS,

Substituting a = -a,

v{square}= u{square} - 2aS

so, Displacement = v{square}/2a

Now, sub