Multiple Choice
A playground merry-go-round has a radius R and a rotational inertia I. When the merry-go-round is at rest, a child with mass m runs with speed v along a line tangent to the rim and jumps on. The angular velocity of the merry-go-round is then:
A) mv/I
B) v/R
C) mRv/I
D) 2mRv/I
E) mRv/(mR2v + I)
Correct Answer:
Verified
Correct Answer:
Verified
Q2: A thin-walled hollow tube rolls without sliding
Q18: The angular momentum vector of Earth, due
Q24: A pulley with radius R is
Q25: A uniform disk has radius R
Q26: As a 2.0-kg block travels around a
Q28: Possible units of angular momentum are:<br>A)kg.m/s<br>B)kg.m<sup>2</sup>/s<sup>2</sup><br>C)kg.m/s<sup>2</sup><br>D)kg.m<sup>2</sup>/s<br>E)none of
Q31: When a woman on a frictionless rotating
Q49: Two uniform cylinders have different masses and
Q52: A hoop, a uniform disk, and a
Q54: A particle, held by a string whose