Right now I'm trying to just calculate the force from the kick. I believe I need to calculate the initial velocity (from before the graph starts), and then calculate the instantaneous velocity at point (0,0) when the ball is kicked - then use these to calculate the change in momentum in order to determine the force... however, the answer I ended up with (<614,0,0>N) just doesn't seem right to me, so I'm trying to figure if/what I'm doing wrong. Thanks in advance!

Answer: 1.4 seconds which is the third optionexplanation: current is defined as the flow of charge per timetherefore, the equation that relates current, charge and time can be expressed as follows: i = δq / δtwhere: i is the current given = 1.8 ampereδq is the charge given = 2.5 coulombδt is the time required for the flow of the given charges to give the 1.8 ampere.substitute with the givens in the above equation to get the time as follows: 1.8 = 2.5 / δtδt = 2.5 / 1.8 = 1.38888 which is approximately 1.4 secondshope this was !

Ithink it is a. but i'm not 100 percent sure.

D.) a wheel barrow, due to the fact that where the weight is in the middle, the fulcrum is at the wheel, and the input force is at the other end