A merry go round is spinning at a rate of 5.0 revolutions per minute. Cora is si

Question

A merry go round is spinning at a rate of 5.0 revolutions per minute. Cora is sitting 1.0 m from the center of the merry go round and Cameron is sitting right at the edge 2.0 m from the center.

What is the relationship between the rotational speed of the two children?
a. Cameron's rotational speed is double coral rotational speed.
b. Cameron's rotational speed is four times as much as coral rotational speed.
c. Cora rotational speed is double Cameron's rotational speed.
d. Cora rotational speed is the same as Cameron's rotational speed.
e. Cora rotational speed is four times as much as Cameron's rotational speed

What is the relationship between the tangential speed of the two children?
a. Cora tangential speed is four times as much as Cameron's rotational speed.
b.camerons tangential speed is four times coral tangential speed.
c. Cora tangential speed is the same as Cameron's tangential speed.
d. Cora tangential speed is double Cameron's tangential speed.
e. Cameron's tangential speed is double coral tangential speed.

Explanation / Answer

here,

distance of Cora from the centre, Rc = 1 m

distance of Cameron from the centre, Ra = 2 m

rotational speed of merry go ground , W = 5 rpm

as both Cameron and Cora are on same merry go round

then both Cameron and Cora should have same rotational speed

so correct answer is (d). Cora rotational speed is the same as Cameron's rotational speed.

let the tangential speed of Cameron and Cora be Va and Vc

we know

V = r * W

then

Vc = W

and

Va = 2 W

so correct answer is (e.) Cameron's tangential speed is double coral tangential speed.

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