Finally, it may give further credence to this weight and reduced MPG concept by introducing this lesson with an opening general discussion question. Ask the students if they notice any difference in MPG when they tow a boat or a camper. Another approach might be to ask the group if they know how many MPGs a motor home or large truck gets. Ask them to compare these MPGs to their personal car or light truck. The difference between the weight of an empty vehicle and a loaded vehicle.
Strength can be independent of weight or thickness.
If you have difficulty in obtaining a reading on the spring gauge, add some weight to the truck by bolting a piece of metal to the truck under body. If this is done, then cut some small pieces of metal of equal size and weight to use in lieu of the washers. Answers for the Information Check. The added wind resistance and drag also reduces the MPG of the towing vehicle. The effects of the coefficient drag becomes more pronounced with higher and higher speeds.