1. Understand the Formula

The kinetic energy (KE) of an object is given by:

KE = (1/2) * mv²

where:

* KE is kinetic energy (in Joules)

* m is mass (in kilograms)

* v is velocity (in meters per second)

2. Rearrange the Formula to Solve for Velocity

To find the velocity, we need to rearrange the formula:

v² = 2 * KE / m

v = √(2 * KE / m)

3. Plug in the Values

* KE = 50 J

* m = 0.5 kg

v = √(2 * 50 J / 0.5 kg)

v = √(200 J/kg)

v = 14.14 m/s (approximately)

Therefore, the velocity of the object is approximately 14.14 meters per second.