Answer :
Final answer:
The ride rate and natural frequencies of a 2020 Dodge Challenger's front and rear can be determined by using the spring rate of its tires, load per tire, and the front and rear suspension rates. The ride rate is calculated by dividing load by spring rate, and the natural frequency is calculated by using the formula (1 / 2π) * sqrt(k/m).
Explanation:
The ride rate for the front and rear of a vehicle determines how much the vehicle's suspension moves in response to unevenness in the road surface, measured in lb/in. The ride rate is calculated by the formula: Ride Rate= Load / Spring Rate. For the Dodge Challenger, you would calculate the front ride rate by dividing the load per front tire (1140 lb) by the front suspension rate (139 lb/in), and calculate the rear ride rate by dividing the load per rear tire (875 lb) by the rear suspension rate (106 lb/in).. To determine the Ride Rate for the front, we add the tire spring rate to the front suspension rate: 1204 lb/in + 139 lb/in = 1343 lb/in. To determine the Ride Rate for the rear, we add the tire spring rate to the rear suspension rate: 1204 lb/in + 106 lb/in = 1310 lb/in
The natural frequency of a vehicle's suspension, measured in Hz, describes how quickly the suspension will oscillate when disturbed. The natural frequency can be calculated using the formula: f = (1 / 2π) * sqrt(k/m), where k is the spring constant (spring rate) and m is the mass. In this case, the mass would be the weight of the vehicle divided by gravity (to convert to mass) and then divided by the number of wheels (since each wheel has its own spring).
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