Question

A helicopter propeller blade starts from rest and experiences a constant angular acceleration of 18.0 rad/s2. Find the speed of a point on the blade 2.35 m from the axis of rotation when the blade has completed 18 revolutions.

Answer #1

A wheel released from rest is rotating with constant angular
acceleration of 2.5 rad/s2.
(a) After 2.5 s, what is its angular velocity?
rad/s
(b) Through what angle has the wheel turned?
rad
(c) How many revolutions has it made?
rev
(d) What is the speed of a point 1.0 m from the axis of
rotation?
m/s
What is the magnitude of the total acceleration of the same
point?
m/s2

The drive propeller of a ship starts from rest and accelerates
at 3.00 x 10-3 rad/s2 for 2.47 x 103 s. For the next 1.61 x 103 s
the propeller rotates at a constant angular speed. Then it
decelerates at 2.34 x 10-3 rad/s2 until it slows (without reversing
direction) to an angular speed of 2.35 rad/s. Find the total
angular displacement of the propeller.

1. A wheel starts from rest and has an angular acceleration of
6.00 rad/s2 . When it has made 3.00 rev its angular
velocity in rad/s is:
2. A circular disk of radius 1.00 m rotates, starting from rest,
with a constant angular acceleration. What is the centripetal
acceleration of a point on the edge of the disk at the instant that
its angular speed is 2.50 rev/s?

The drive propeller of a ship starts from rest and accelerates
at
2.90 × 10−3 rad/s2 for 2.10 × 103 s. For the next 1.40 × 103 s the
propeller rotates at a constant
angular speed. Then it decelerates at 2.30 × 10−3 rad/s2 until it
slows (without reversing direction)
to an angular speed of 4.00 rad/s. Find the total angular
displacement of the propeller.

A 44.0-cm diameter disk rotates with a constant angular
acceleration of 3.00 rad/s2. It starts from rest at
t = 0, and a line drawn from the center of the disk to a
point P on the rim of the disk makes an angle of 57.3°
with the positive x-axis at this time.
(a) At t = 2.48 s, find the angular speed of the
wheel.
rad/s
(b) At t = 2.48 s, find the magnitude of the linear
velocity...

A wheel starts spinning from rest at a constant angular
acceleration of .04 rad/s2. Find the time needed for the
angle between the velocity vector and the net acceleration on any
point on the wheel to be 76°.

The drive propeller of a ship starts from rest and accelerates
at 2.1 x 10-3 rad/s2 for 2.1 x 103 s. For the next 2 x
103 s the propeller rotates at a constant angular speed. Then it
decelerates at 2 x 10-3 rad/s2 until it slows (without
reversing direction) to an angular speed of 7 rad/s. Find the total
angular displacement of the propeller.

The drive propeller of a ship starts from rest and accelerates
at 2.1 x 10-3 rad/s2 for 2.1 x 103 s. For the next 2 x
103 s the propeller rotates at a constant angular speed. Then it
decelerates at 2 x 10-3 rad/s2 until it slows (without
reversing direction) to an angular speed of 7 rad/s. Find the total
angular displacement of the propeller.

The drive propeller of a ship starts from rest and accelerates
at 2.44 x 10-3 rad/s2 for 2.48 x 103 s. For the next 1.08 x 103 s
the propeller rotates at a constant angular speed. Then it
decelerates at 2.84 x 10-3 rad/s2 until it slows (without reversing
direction) to an angular speed of 2.93 rad/s. Find the total
angular displacement of the propeller.

The drive propeller of a ship starts from rest and accelerates
at 2.9 x 10-3 rad/s2 for 2.4 x 103 s. For the next 4 x 103 s the
propeller rotates at a constant angular speed. Then it decelerates
at 6 x 10-3 rad/s2 until it slows (without reversing direction) to
an angular speed of 6 rad/s. Find the total angular displacement of
the propeller.
Do not put units in answer.
Do not put answer in scientific notation

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