Question

At a local park, the merry-go-round is a disk-shaped platform with a radius of 1.6 m and a mass of 220 kg. Suppose you applied a force of 120 N tangent to the outside edge of this merry-go-round for a total of 10 seconds.

A) Neglecting any frictional loss, find the expected angular acceleration.

B) If the merry-go-round in #11 starts from rest, find the total number of rotations made by this merry go round during this 10 second period.

C) Suppose that you stopped the merry-go-round in #11, then repeated this same push (same force, same time) with several people on board the merry-go-round. How would the angular momentum compare in the two cases (with and without people?)

Group of answer choices 1)The angular momentum would be higher without people 2)The angular momentum would be the same 3)The angular momentum would be higher with people 4)There is not enough information to be sure

Answer 1