Question

A car manufacturer reduces the mass of a car by 250 kg. If the new design is otherwise identical to the old design, how will the new car compare to the old car?

f It will require more fuel to operate.
g It will have a greater gravitational attraction to the road.
h It will need less force to move.
j It will release more gas emissions.

Answer 1

h. It will need less force to move.

Step-by-step explanation:

The reduction in mass of the car means that the car will have less inertia, or resistance to motion. This means that less force will be required to accelerate or maintain motion for the new car design compared to the old car design. Lowering the weight of the car will improve its power-to-weight ratio and thus will be more efficient in terms of fuel consumption and acceleration but this is not directly related to the question.