Question

a body of mass 2kg is having kinetic energy of 2joules than its velocity is​

Answer 1

Answer:

ke=1/2mv ^2

hope it helps

Answer 2

Given:

Mass = 2 kg

K.E. (Kinetic Energy) = 2 J (joules)

To find:

Velocity

Concept used:

• $K.E. = \frac{1}{2} m {v}^{2}$

Solution:

If

$K.E. = \frac{1}{2} m {v}^{2}$

then,

$m {v}^{2} = 2K.E.$

${v}^{2} = \frac{2K.E.}{m}$

$v = \sqrt{ \frac{2K.E.}{m} }$

Substituting the value of Kinetic Energy = 2 J and

Mass = 2 kg

$v = \sqrt{ \frac{2 \times 2}{2} }$

$v = \sqrt{2} \: m/s$

and that is the answer

Hope it helps,

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