Final answer:
It's impossible to determine exactly how much longer it takes for a truck to stop compared to a car without specific data on vehicle weights, tire conditions, and road surfaces. Wet and slippery conditions due to rain increase stopping distances for all vehicles, but the percentage increase can vary widely.
Step-by-step explanation:
The question you've asked pertains to the physics of braking distances under poor weather conditions. When considering how much longer it takes for a truck to stop compared to a car, we need to account for several factors. These include the distance a driver covers before initiating a stop (reaction distance), the time it takes for the vehicle to come to a complete stop once brakes are applied (braking distance), and the total stopping distance. The exact percentage by which a truck's stopping distance increases compared to a car during bad weather depends on several conditions such as road surface, the weight of the vehicle, tire conditions, and maintenance of the brakes. Without specific data provided for trucks versus cars, a precise answer cannot be derived solely based on the information given.
During wet conditions, the road becomes slippery due to oil and gasoline residue mixing with rainwater, reducing tire traction and thus increasing stopping distances. Similarly, heavy rain can further reduce visibility and tire grip on the road, leading to longer stopping times. As for the multiple-choice options provided (20%, 25%, 30%, 35%), these cannot be accurately determined without additional context or data about the specific vehicles and conditions.
In summary, while bad weather undoubtedly affects stopping times for vehicles, quantifying the difference in stopping distance between a truck and a car requires detailed analysis of the aforementioned factors.