A car on a straight road starts from rest and accelerates at 1.0 meter per second? for 10. seconds. Then the car continues to travel at constant speed for an additional 20. seconds.
[6]
Determine the speed of the car at the end of the first 10. seconds.
m/s

What are you trying to ask?

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

Answavelength; amplitude;