WorksheetsRotation of Rigid Body
Total questions: 6
Worksheet time: 3mins
An angular speed of 40 revolution per minute is equivalent to
2.61 rad/s
4.19 rad/s
382 rad/s
0.07 rad/s
Which of the following is true about a rotating rigid body
Its centre of rotation is at rest
The centre of rotation is at the centre of mass
All points on the body are moving with the same linear velocity
Every points in the body are movng with the same angular velocity
When a ballet dancer outstretch her arms, the angular velocity of the skater decreases
True
False
When the object tends to rotate in a clockwise rotation, the torque is
Positive
Negative
You and a friend are playing on the merry- go-round. You stand at the outer edge of the merry-go-round and your friend stands halfway between the outer edge and the center. Assume the rotation rate of the merry-go-round is constant. Who has the greatest angular velocity?
You
Same
Your friend
You and a friend are playing on the merry- go-round. You stand at the outer edge of the merry-go-round and your friend stands halfway between the outer edge and the center. Assume the rotation rate of the merry-go-round is constant. Who has the greatest tangential velocity?
You
Your friend
Same
