Can you please help me out with #1, 4, & 5 Thank you! Circular Motion The centri

Question

Can you please help me out with #1, 4, & 5
Thank you! Circular Motion The centripetal force acting on the rotating mass is given by 41a MR where M mass of the rotating mass R radius of orbit T period of orbit Procedure (1) 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 wil 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 Mass of rotating object Time for Period Hanging weight of Centripetal Radius Distance A Distan Diffe. From fro of pointer pointer orbit ofbrbi 20 orbits T (s) mass Mass Force rence o pole (m) to pole (mN (m) 0.900 0.800 34 140 m 0.600 SSS

Explanation / Answer

Question: 1)

The Centripetal force, Fc = Mv2/R --------->[1]

angular velocity, v = 2*pi*R/T ---------->[2]

substitute [2] in [1], we get

Fc = M[2*pi*R/T]2/R

Fc = 4*pi2*R*M / T2

Question 4:

Driver push forward on to the steering and leans to his left, while making a left turn, because,

he needs to rotate the steering in anti-clock wise direction, leaning to the right and rotating makes him to push his hands on the steering away from his body, which is difficult than leaning to the left and pulling the steering towards his body.

Simply, pulling is easier than pushing.

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