Physics 1: Uniform Circular Motion

A student is swinging a mass, m = 2.0 kg, in a uniform vertical circle of radius R = 2.5 m. The period of the rotation is 2.8 seconds. Draw a free body diagram for the mass at the top of the circle and find the tension of the string (ignore friction and the mass of the string.) Repeat for the mass at the bottom of the rotation.

A car is driving in a circle on an embanked road as shown below. Draw a free body diagram for the car, ignoring friction.

Given that the radius of orbit for the moon is 3.8 x 10$^8$ m, the period of the moon's orbit is 2.36 x 10$^6$ s, and the radius of the earth is 6.38 x 10$^6$ m; Find the altitude of a geostationary satellite.(hint: use Kepler's third law.)

Find the period of a satellite at an altitude of 200 km.

R$_E$ = 6.38 x 10$^6$ m

M$_E$ = 5.98 x 10$^{24}$ kg

G = 6.67 x 10$^{-11}$ $\frac{Nm^2}{kg^2}$