Question 2 (10 points)
a truck with a mass of 1390 kg is approaching a downed tree in the middle of the road ahead. the truck slows from 21.9 m/s to 11.5 m/s over a
time period of 2.88 s in order to avoid the tree. what force was required to slow the truck?

-4000 n
4000 n
-5020 n
-134 n
-483 n
5020 n
134 n
483 n

The answer is b hope this

Iwould say a is accurate

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