Question

find the velocity of a body of mass 100 gram having a kinetic energy of 20 Joule

Answer 1

see bro just use the formula 1/2mvsq . substitute value get ansr it's just formula based question ......ok it will help you change mass in kg.....

Answer 2

HEY MATE HERE IS YOUR ANSWER

$\rule {135} {2}$

We know that,

Kinetic Energy =
$= \frac{1}{2} m {v}^{2}$
K. E = 20 J

20 = 1/2 × 100 × v^2

$= > {v}^{2} = 2.5$
=> v = 0.5

➡️ Hope it will help you

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