Question

what happened to the kenetic force of a body when its velocity is invreased by three times

Answer 1

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Answer 2

Hey friend,

Here is your answer,
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Let the mass of body be m and velocity be v.

Original Kinetic energy (K.E₁) = 1 * m * v²
                                                   2

Final Kinetic energy (K.E₂) = 1 * m * (3v)²
                                              2

                                 = 1 * m * 9v²
                                    2
  
                                = 9  ( 1 * m * v² )
                                         2

                                = 9 K.E₁

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