A cockroach rides the rim of a rotating merry-go-round. If the angular speed of
ID: 2295202 • Letter: A
Question
A cockroach rides the rim of a rotating merry-go-round. If
the angular speed of this system (merry-go-round +
cockroach) is constant, which of the following statements
is true?
a. Both tangential and radial acceleration are zero.
b. Tangential acceleration is zero, but radial acceleration
is nonzero.
c. Tangential acceleration is nonzero, but radial
acceleration is zero.
d. Both tangential and radial acceleration are nonzero.
A cockroach rides the rim of a rotating merry-go-round. If
the angular speed of this system (merry-go-round +
cockroach) is decreasing, which of the following
statements is true?
a. Both tangential and radial acceleration are zero.
b. Tangential acceleration is zero, but radial acceleration
is nonzero.
c. Tangential acceleration is nonzero, but radial
acceleration is zero.
d. Both tangential and radial acceleration are nonzero.
Explanation / Answer
1) b
2)d
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