Question

1 kg mass has a kinetic energy of 1 joule when its velocity is

Answer 1

K.E = 1/2 m v2

We'll replace K.E i.e kinectic enerygy by 1 J and mass (m) by 1 (given in the question)

1 = 1/2 * 1 * v2

2 = v2 (take 2 to the other side)

root 2 = v

or 1.4 m/s = v

Answer 2

Answer:

The velocity of the object will be 1.4 m/s.

Explanation:

Kinetic energy is the energy which an object has while moving.

Mass of object= 1kg

Kinetic energy = 1 Joule

We know,

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

1= $\frac{1}{2}$  x 1 x v²

v=√2

The value of √2 is 1.4.

Therefore, the velocity of the object is 1.4 m/s.

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