Name: ______________________


Quiz 4


Ch. 5






1)      A 75 kg person is standing 3m from the center of a merry-go-round (i.e., a disk).The static coefficient of friction between the personís shoes and the merry-go-round is 0.5.

a)      When the merry-go-round is spinning with a period of 20s, what is the magnitude and direction of the personís acceleration?

b)      How fast can the merry-go-round spin before the person slips off?Express your answer as the minimum period.