when a number of force acting on a body doesn't changes its motion it is called balanced force
I had the SAME problem, put down Radiation and it’s thermal/light.
Explanation:
study of motion of an object ...plzz if anyone knies the correct meaning of it ..do comment
Kinetic energy is an expression of the fact that a moving object can do work on anything it hits; it quantifies the amount of work the object could do as a result of its motion. And potential energy <span>is the </span>energy<span> that is stored in an object due to its position relative to some zero position. </span><span> We calculate as follows:
KE + PE = mv^2 / 2 + mgh
Total energy = .4(25)^2/2 + .4(9.81)(1.2)
Total energy = 129.71 J = 130 J <------- OPTION A</span>
