Question

part a

a girl and a boy are riding on a merry-go-round that is turning at a constant rate. the girl is near the outer edge, and the boy is closer to the center. who has greater linear speed?

the girl has greater linear speed.
both the girl and the boy have the same nonzero linear speed.
the boy has greater linear speed.
both the girl and the boy have zero linear speed.

Explanation:

Identify the given physical scenario

Using the Linear and Angular Speed Relation knowledge point

$$
LATEXBLOCK0
$$

Relate linear speed to angular speed

Using the Linear and Angular Speed Relation knowledge point

$$
LATEXBLOCK1
$$

Compare the linear speeds

Using the Linear and Angular Speed Relation knowledge point

$$
LATEXBLOCK2
$$

Answer:

• The girl has greater linear speed. (Correct answer)
• Both the girl and the boy have the same nonzero linear speed.
• The boy has greater linear speed.
• Both the girl and the boy have zero linear speed.