if the mass of an object is doubled while the velocity stays constant how does its kinetic energy change

1. it halves

2. It remains the same

3. it doubles

4. it quadruples

2. It remains the same

The kinetic energy of an object is determined by both its mass and its velocity. In this case, the velocity remains constant while the mass is doubled. Since the mass is directly proportional to the kinetic energy, doubling the mass while keeping the velocity constant will result in the kinetic energy remaining the same.