Question 1

A flywheel rotating with an angular velocity of 2 rad/s is then uniformly accelerated at 2 rad/s2 for 2 s. Its angular velocity after this time will be:

Accepted Answer

A)   2 rad/s
B)   4 rad/s
C)   6 rad/s
D)   8 rad/sE) B) and C)
F) A) and D)

Question 2

Decide whether each of these statements is True (T)  or False
When the angular velocity of a wheel doubles:
(i)  The number of revolutions per sec is doubled.
(ii)  The angle through which the wheel rotates in 1 s is doubled.

Accepted Answer

A)   (i)  T (ii)  T
B)   (i)  T (ii)  F
C)   (i)  F (ii)  T
D)   (i)  F (ii)  FE) B) and C)
F) A) and C)

Question 3

A wheel of radius 0.1 m is rotating at 3 rev/s. The peripheral velocity of a point on the wheel time is:

Accepted Answer

A)   0.3 m/s
B)   0.3π m/s
C)   0.6 m/s
D)   D 0.6π m/sE) A) and C)
F) B) and C)

Question 4

A body rotates at 4 rev/s. In 1 s it will rotate through:

Accepted Answer

A)   4 rad
B)   4π rad
C)   8 rad
D)   8π radE) A) and B)
F) A) and C) D

Question 5

A flywheel starting from rest accelerates uniformly at 1 rad/s2. In 4 s it will complete:

Accepted Answer

A)   4 rad
B)   8 rad
C)   16 rad
D)   32 radE) A) and B)
F) None of the above B

Question 6

A body rotates with an angular velocity of 3 rad/s. It will thus make:

Accepted Answer

A)   3π rev/s
B)   3/2π rev/s
C)   6π rev/s
D)   6/π rev/sE) None of the above
F) B) and D) B

Exam 3: Angular Motion

A flywheel rotating with an angular velocity of 2 rad/s is then uniformly accelerated at 2 rad/s2 for 2 s. Its angular velocity after this time will be:

Correct Answer
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Decide whether each of these statements is True (T) or False When the angular velocity of a wheel doubles: (i) The number of revolutions per sec is doubled. (ii) The angle through which the wheel rotates in 1 s is doubled.

Correct Answer
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A wheel of radius 0.1 m is rotating at 3 rev/s. The peripheral velocity of a point on the wheel time is:

Correct Answer
verified

A body rotates at 4 rev/s. In 1 s it will rotate through:

Correct Answer
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D

A flywheel starting from rest accelerates uniformly at 1 rad/s2. In 4 s it will complete:

Correct Answer
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B

A body rotates with an angular velocity of 3 rad/s. It will thus make:

Correct Answer
verified
B

Exam 3: Angular Motion

A flywheel rotating with an angular velocity of 2 rad/s is then uniformly accelerated at 2 rad/s2 for 2 s. Its angular velocity after this time will be:

Correct AnswerverifiedShow Answer

Decide whether each of these statements is True (T) or False When the angular velocity of a wheel doubles: (i) The number of revolutions per sec is doubled. (ii) The angle through which the wheel rotates in 1 s is doubled.

Correct AnswerverifiedShow Answer

A wheel of radius 0.1 m is rotating at 3 rev/s. The peripheral velocity of a point on the wheel time is:

Correct AnswerverifiedShow Answer

A body rotates at 4 rev/s. In 1 s it will rotate through:

Correct AnswerverifiedD

A flywheel starting from rest accelerates uniformly at 1 rad/s2. In 4 s it will complete:

Correct AnswerverifiedB

A body rotates with an angular velocity of 3 rad/s. It will thus make:

Correct AnswerverifiedB

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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D

Correct Answer
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B

Correct Answer
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B