The kinetic energy of a moving object is related to its mass and velocity by the formula Ek=1/2mv^2, where Ek is the kinetic energy in joules, m is the mass of the object in kilograms, and v is the object’s velocity in metres per second. What are the possible velocities for a 3 kg object with a kinetic energy of less than 600 J? (Negative velocities are acceptable and represent the opposite direction of a positive velocity.)

Answer 1

1/2 * 3 * v^2 < 600
v^2 < 400
|v| < 20