In this question you will use a simple model to estimate how the energy used by a car depends on its design and how it is driven. Begin by neglecting air and ground resistance, and assume that the car travels at constant velocity between regular equally spaced stops. (a) A stationary car of mass m is rapidly accelerated to a velocity v, driven for a distance s, and is rapidly brought to a halt by its brakes. Calculate the energy dispersed by the brakes. (b) Assuming the car restarts immediately, calculate the time between subsequent stops and hence the average power dissipated. (c) Hence or otherwise calculate the energy used in travelling a total distance d. (d) Taking m = 1000 kg, v = 10ms−1 and s = 100m calculate the energy used in travelling 1 km. What would be the effect of doubling the speed to 20ms−1? I need help with this Question. It seems to be easy but I think I've got an error in my mind.^^ Thanks in advance!