What is the kinetic energy of a body of mass 10 kg moving with a velocity of 40 m/s?

A rigid body of mass 10 kg is moving with a constant linear velocity of 5 m/s in a vacuum. What is its exact kinetic energy?

What is the kinetic energy of a body of mass 5 kg moving with a velocity of 30 m/s?

What is the kinetic energy of a body of mass 20 kg moving with a velocity of 50 m/s?

An object begins with an initial velocity of 9 m/s and accelerates uniformly at 3 m/s² for 8 seconds. What is its final velocity?

An object begins with an initial velocity of 6 m/s and accelerates uniformly at 5 m/s² for 9 seconds. What is its final velocity?

An object begins with an initial velocity of 7 m/s and accelerates uniformly at 5 m/s² for 6 seconds. What is its final velocity?