What is the stopping power required when a vehicle's weight is doubled?

When the weight of a vehicle is doubled, the stopping power required to bring the vehicle to a stop indeed increases. The stopping power relates to the force needed to stop the vehicle, which is influenced by its weight.

The stopping distance and the force required to stop are governed by physics, particularly Newton's second law of motion. According to this law, force is equal to mass times acceleration (F = m*a). If the mass (or weight) of the vehicle doubles, to achieve the same deceleration (negative acceleration) to stop, you would need to apply double the force.

This is why the correct answer states that the stopping power required is 2 times the original stopping power when the vehicle's weight is doubled. The stopping distance also increases, but when focusing solely on stopping power, it directly correlates to the increase in weight.