one rev in 4.2 seconds
v= 2PI*radius/4.2
figure that out
Now, average angular velocity= Vi/(2*r)
revolutions= avgangularveloicty*22sec
A 2.0 m diameter merry-go-round is initially turning with a 4.2 s period. It slows and stops in 22.0 seconds. Before slowing, what is the speed (in m/s) of a child on the rim?
How many revolutions does the merry-go-round make as it stops?
2 answers
This is wrong