Question

7. The kinetic energy of an object is K. If its velocity is doubled than its kinetic energy
will be:
(a) K
(6) 2K
(c)K/2
(d) 4K​

Answer 1

Explanation:

Kinetic energy =

2

1

mv

2

Where we have taken v as velocity.

If we replace v with 2v, we have:

Kinetic energy (new) =

2

1

m(2v)

2

=

2

1

4(mv

2

)

⟹4K

Answer 2

☆☆ANSWER ☆☆

(d).4 k is the correct option.

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