10/6 Homework

3. There would be no difference because the tires would still be propelling the car at the same speed. In other words, the tires would still be spinning, and reading on the speedometer, an accurate speed regardless of the tire size.

11. When you accelerate you are putting force in the opposite direction of where you are going. So as the wheels turn to propel you forward, it pushes the car up. When braking, all of the force that you have when traveling is in the your front direction so the brakes try and absorb that force thats headed forwards. This causes you to lean in the direction of the force vector. It depends the force your exerting and in what direction. accelerate=force upwards break=force downwards. 

14. The ramp would reveal that the two have different masses. The solid one would have a greater mass than the hollow one, which would be evident by placing them on the ramp.