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1. a=Δv/Δt=(v-vo)/t=(0-25)/5=-25/5=-5 m/s²
The "-" sign shows us that the car has a slow motion
2.a=Δv/Δt=(v-vo)/t=(10-0)/4=10/4=2,5 m/s²
3.they do not have acceleration because they go at constant speed
The equation we need to use is Ohm's Law
Voltage = Current * Resistance
Voltage = 6A * 3<span>Ω = 18 Volts</span>