We appreciate your visit to For the vehicle you ve selected which of the following statements is true if the Gross Combination Weight GCW of a vehicle and trailer exceeds. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!
Answer :
Final answer:
If the GCW exceeds the GCWR, the vehicle and trailer are overweight. A trailer bouncing slowly likely indicates it is nearly empty. Calculating resistance and hitch forces in a towing scenario involves understanding physics and applying Newton's second law.
Explanation:
If the Gross Combination Weight (GCW) of a vehicle and trailer exceeds the Gross Combination Weight Rating (GCWR), it means that the vehicle and trailer are overweight. This condition can lead to various safety and legal concerns, as the vehicle may not be able to handle the excessive weight, potentially resulting in reduced braking efficiency, tire overload, and compromised vehicle control. In most jurisdictions, there are legal weight limits that must be adhered to when driving on public roads, and surpassing the GCWR would mean that the vehicle is operating outside of these limits.
In the scenario described, where a freight truck's trailer is bouncing up and down slowly on the highway, it is indicative that the trailer could be nearly empty rather than heavily loaded. A heavily loaded trailer would typically depress the suspension, resulting in less bounce due to the increased damping effect of the weight. Conversely, an empty trailer has a lighter load on the suspension, which could cause more pronounced bounciness due to lack of damping mass.
When considering forces involved in towing, such as the scenario where a 1100-kg car pulls a boat on a trailer, the total force resisting motion can be calculated using Newton's second law, which relates force, mass, and acceleration. The force in the hitch between the car and the trailer can also be determined based on the proportion of resisting forces experienced by each component, in this case, 80% by the boat and trailer, implying that the hitch force is accommodating the remaining resistance.
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