(a)[1]
Define power
(b(i))[2]
Calculate the power delivered to the car’s wheels by the motor.
(b(ii))[2]
Calculate the useful work carried out by the motor as the car travels a distance of $17\,\text{km}$.
(b(iii))[3]
The potential difference (p.d.) across the motor is kept at $600\,\text{V}$, and the motor works with an efficiency of $85\%$. Calculate the current in the motor.
(c(i))[1]
State and explain any effect of the slope on the air resistance acting on the car.
(c(ii))[1]
State and explain any effect of the slope on the current in the motor.