large are these angles in radians: A half rotation, a full rotation,
5 rotations, 45 degrees, 90 degrees, 360 degrees?
car engine rotates at a rate of 4,500 rpm (revolutions per minute).
What is the angular velocity of the engine in radians/sec?
image of a
man 180 cm tall subtends an angle of .0036 radians. How far
away is the man?
Q4&5: The angular position of a merry-go-round
is specified as:
are the inital angular position, angular velocity and angular acceleration
of the merry-go-round at t = 0 seconds? (Hint: Compare
to the linear kinematic equations.)
are the angular position, velocity and acceleration of the merry-go-round
at t = 5 seconds.
Q6-8: An electrical motor
running at 1,000 rpm is turned off, and its angular velocity decreases
to 500 rpm over three seconds.
What is the angular acceleration of the motor?
many revolutions does the motor turn through before coming to
rest after t=3.0s?
the motor continues to uniformly coast to a halt, how much time
is required to come to a complete stop?