elocity of a merry-go-round increases at a cor rotationally accelerated at the constant rate of ocity of a spinning disk decreases from 17.0 a merry-go-round accelerates at a constant rate O N is applied at the end of a wrench handle th by the
elocity of a merry-go-round increases at a cor rotationally accelerated at the constant rate of ocity of a spinning disk decreases from 17.0 a merry-go-round accelerates at a constant rate O N is applied at the end of a wrench handle th by the
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Please answer E4,E5,E6
Transcribed Image Text:E3. Suppose a disk rotates through 8.0 revolutions in 5.0 seconds. What is its displacement in radians in this time?
What is its average rotational velocity in rad/s?
E4. The rotational velocity of a merry-go-round increases at a constant rate from 0.3rad/s to 2.1 rad/s in a time of 6.Os. What is the rotational acceleration of the merry-go-
round?
E5. A bicycle wheel is rotationally accelerated at the constant rate of 1.3 rev/s?. If it starts from 1.3 rev/s, what is its rotational velocity in radians/sec after 8.5s.
E6. The rotational velocity of a spinning disk decreases from 1 7.0 rev/s to 2.5 rev/s in a time of 12.5 s. What is the rotational acceleration of the disk in radians?
E7. Starting from rest, a merry-go-round accelerates at a constant rate of 0.4 rev/s. What is its rotational velocity after 6.0 s?
E8. A force of 70.0Nis applied at the end of a wrench handle that is 24.0 cm long. The force is applied in a direction perpendicular to the handle, as shown in the diagram below.
What is the torque applied to the nut by the wrench?
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