Aprojectle pioton with a speed of 500 11/s collides elastucally with a target proton which is itially at rest the projectile and target protons then move along pet pendicular paths, with the projectile path at 60° from the original direction after the collision, what are the speeds of turn over phy1505 oct/nov 2017 a) the target proton and (8) b) the projectile proton

Your answer is 32 hope i  

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