The answer is mass. I have to comment more than 20 characters.
B . light is <span>the physical energy that stimulates sight</span>
Answer:
900J
Explanation:
w =f×s
60×15
=900J
thus the k.e of the body is 900j
The answer is C. Potential energy is when an object is at rest.
Kinetic is when an object is in motion.