Ignoring the damping introduced by the shock absorbers, explain why the number of passengers in a car affects the vibration frequency of the car‘s suspension system.
the more weight applied to the springs the less vibration they will have as the force down on the springs changes therefore changing the rate of compression .
More passengers add to the mass of the car, perhaps around 25% more mass. If you have more mass vibrating on the spring system, you have a lower frequency of vibration. Frequency of vibration is given by: f sqrt(k/m)/(2*Pi) k is the same, because the same spring set is used. m is increased, and so f decreases.
maximum displacement in overhand sports