The mass of an object with 500 J of kinetic energy moving with a velocity of 5 m/s is kg.

Explanation:

Hello,

In this case, we define the kinnetic energy as:

Thus, for finding the mass we simply solve for it on the previous equation given the kinetic energy and the velocity:

Best regards.

answer; ///i do believe that the correct answer is (b); ///particle composed of two or more atoms bonded together;