Answer:
Mass of an object, m = 40 kg
Step-by-step explanation:
It is given that,
Kinetic energy of an object, KE = 500 J
The object is moving with velocity of 5 m/s. We have to find the mass of an object. Kinetic energy is possessed due to moving body. Mathematically, it can be written as :



m = 40 kg
So, the mass of an object is 40 kg. Hence, this is the required solution.