HelpfulEquation: v=v+at ||y=v t+1at2 ||a=−g ||g=10m/s2
0y 0y2y y
Consider that you are throwing a ball vertically upward with an initial speed of 80m/s. Find out the followings
(a) The time the ball takes to reach the highest point
(b) What indeed is the highest point that the ball attains?
(c) What is the speed of the ball after 2 seconds?
(d) What is the speed of the ball after 9 seconds?

I'll do it rn and then answer

stands for electromotive force and it is measured in volts. despite its name, it is not actually the force in the sense of being a "pushing" or "pulling" (not measured in newtons).an equation that relates emf,  ℰ,  to a battery's terminal voltage, v, current, i, and internal resistance, r, is    ℰ = v + irin this case, the emf can be interpreted as a voltage—a difference in electric potential.i would not say that it would be considered an energy. if emf can be defined as the energy/work per a unit charge from a battery or other electric source, then it is not strictly energy.