Circular Motion The centripetal force acting on the rotating mass is given by 41

Question

Circular Motion The centripetal force acting on the rotating mass is given by 41 MAR where M mass of the rotating mass R z radius of orbit T: period of orbit Procedure (i) Clamp the base of the apparatus to the table so that it cannot slide across the table and so that a mass can hang from the pulley without hitting the table. (2) Measure the diameter of the rotating pole with a vernier caliper. Divide by two for Radius (3) Use a mechanical balance to determine the mass of the rotating pendulum. (4) Place 950 grams on the hanger (note the mass of the hanger is 50 grams) 4) Attach a string to the pendulum and the mass holder going over the pulley. Then adjust the pointer until the rotating mass is directly over the pointer. Adjust the horizontal pole at the top so the strings hang vertically down when the pendulum is above the pointer. (5) Start spinning the pole until the mass is rotating in a circle directly above the pointer. Have someone hold a white piece of paper behind the mass so that it is easier to see when it passes directly over the pointer. (6) using a stopwatch determine the time it takes for 20 orbits. You will have to keep rotating the pole to keep its radius constant! Do this three times, take the average and enter it in excel. (7) Measure the distance from the pointer to the edge of the rotating pole. (8) Remove 200 grams from the hanger and repeat steps (4)-(8). Radius of rotating pole E t Mass of rotating object Distance abwangé Radius Time for Period Hanging weight of centripetal pointer pointe orbit of 20 orbits T (s) mass Mass Diffe Force rence 73 m 0.165 m 0.800 0.19 m 0.600

Explanation / Answer

This happens due to the dynamic weight transfer of the car.

Given a certain car weight, there is a certain amount of mechanical downforce applied to each tire, this downforce impacts the grip potential of the tire. While a car is braking, accelerating, or cornering, the effective mechanical downforce on, and therefore the grip of, the tires is constantly changing.
These changes are referred to as "weight transfer." Of course, the weight of the car isn't changing, or moving about the car, but the forces on the tire contact patches are changing due to inertia and momentum. If you were to have a set of scales under the tires while driving, you would see what appears to be a constant changing of the weight at each tire, hence the name.

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