Could someone please help me, I am confused.

Question 1 How much faster would a person be moving if they stood on top of a 22.4 m high building compared to the ground? Take the period to be one day, and the radius of the earth to be 6400 km. O 14.8 m/s O 0.727 m/s O 0.465 m/s O 0.00163 m/s Question 2 A merry-go-round has an angular velocity of 5.10 rad/s. A ribbon is tied at the end of one of the arms and it has speed of 3.80 m/s. At what distance is the ribbon from the center of the merry-go-round? O 0.497 m O 2.83 m O 0.745 m O 5.10 mQuestion 3 The loopthe-loop section of a particular roller coaster has a radius of 24.5 m. Riders, while going around this circular part of the track, experience an acceleration of 19(where g is the free fall acceleration). How fast does the cart travel around the track? Assume it travels at constant speed. O 54.9 m/s 0 15.5 m/s C) 38.8 m/s 0 0.400 mfs