Question

need help with # 13

Answer 1

You are standing on a slowly rotating merry-go-round, turning counterclockwise as
viewed from above. Draw an FBD for your body and explain your motion
(a) in Earth’s frame of reference (assumed to have negligible rotation)
(b) in the frame of reference of the merry-go-round
13. When you stand on the merry-go-round in question 12, you hold a string from which
is suspended a rubber stopper of mass 45 g. You are 2.9 m from the centre of the
merry-go-round. You take 4.1 s to complete one revolution.
(a) Draw a system diagram, showing the situation at the instant you are moving due
east.
(b) Draw an FBD of the stopper in Earth’s frame of reference for a person looking
eastward from behind you.
(c) Draw an FBD of the stopper in your frame of reference.
(d) What angle does the string make with the vertical?
(e) What is the magnitude of the tension in the string?

Answer 2

Draw your FBD. Show me what you think?