Well it depends if there was any markings but looking at that picture theres no markings so it cant be measured by any.
Answer:
what type of equation?
Step-by-step explanation:
Answer:
7 rpm = 0.73 rad/s
Step-by-step explanation:
R = Radius of merry-go-round = 1.8 m
= Moment of inertia of merry-go-round = 255 kg m²
= Moment of inertia of child
ω = 9 rev/min
m = Mass of child = 24 kg
From the conservation of angular momentum

∴ New angular speed of the merry-go-round is 7 rpm = 
Answer:
20.2
Step-by-step explanation:
because its 20.2 trust
plz mark brainliest