If you double the weight of your vehicle it would take longer to stop.?

Yes, doubling the weight of your vehicle would increase its momentum, which means it would require more force to stop. According to Newton's second law of motion, the stopping distance is directly related to the vehicle's mass and speed. Additionally, increased weight can lead to longer braking distances due to greater inertia and potential limitations in braking system efficiency. Therefore, you would indeed take longer to stop.