what is the speed of 1kg object when the kinetic energy is 1 joule

KE = m•v²/2,

v =sqrt(2•KE/m)

1.41 m/s

To find the speed of a 1 kg object when the kinetic energy is 1 joule, you can use the formula for kinetic energy:

Kinetic Energy = 1/2 * mass * velocity^2

Here, the kinetic energy is given as 1 joule, and the mass is given as 1 kg. Let's replace these values in the equation:

1 = 1/2 * 1 * velocity^2

Now, we can rearrange the equation to solve for velocity:

velocity^2 = 2 * 1 / 1

velocity^2 = 2

Taking the square root of both sides:

velocity = √2

Therefore, the speed of the 1 kg object when the kinetic energy is 1 joule is approximately equal to the square root of 2.