Question

1 kg mass has a kinetic energy of 2 Joule.Calculate it's velocity.

Answer 1

Kinetic Energy= ½mv²
Therefore,
2=½*1*v²
Or, 4=v²
Or, v=2

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Answer 2

Hello friend

___________________________

Given that :::

Mass(m) = 1 kg

Kinetic energy (K.E) = 2 J

We have to find::

Velocity (v) = ?????

So, we know that,

K.E = 1/2mv^2

By putting the values we get,

2 = 1/2 x 1 x (v)^2

4 = (v)^2

v^2 = 4

v = √4

v = 2 m/s.

Therefore, it's velocity is 2 m/s.


Thanks......... :)