K. 4. Two trains start from rest from two stations 2000m apart and travel, on two parallel railroad tracks, in
opposite directions. One train accelerates uniformly at 4 m/s2 and the other has a constant velocity of 20 m/s.
a. How far from the first station will they meet? (6 marks)
b. Sketch the d versus t graph of this event. (4 marks)

Ohm's law tells you that i = v/r where v is equivalent voltage and r is equivalent resistance of the circuit
since all circuits have the same voltage, your question is really asking which circuit has the lowest total resistance, since the lower the resistance, the higher the current
circuit a has a resistance of 5 ohms; circuit c is in series so has a resistance of 10 ohms; circuit b is in parallel and therefore has a resistance of 2.5 ohms (review your notes on adding resistances in parallel and series); therefore b has the highest current

Newtons laws of motion

Answerlosing electrons;