QUESTION 6 A wheel has a radius of 13.0 cm and is initially at rest. The wheel then has a constant angular acceleration of 45.5 rad/s2. What will the angular speed of the wheel be when it has been rotating for a time of 16.0 s, in units of rad/s?
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- A dentist's drill starts from rest. After 3.40 s of constant angular acceleration it turns at a rate of 2.30 x 10 rev/min. (a) Find the drill's angular acceleration. rad/s2 (b) Determine the angle (in radians) through which the drill rotates during this period. radA fan blade is rotating with a constant angular acceleration of +11.2 rad/s2. At what point on the blade, as measured from the axis of rotation, does the magnitude of the tangential acceleration equal that of the acceleration due to gravity? iA rotating wheel requires 6.00 s to rotate 28.0 revolutions. Its angular velocity at the end of the 6.00-s interval is 95.0 rad/s. What is the constant angular acceleration (in rad/s) of the wheel? rad/s2
- The angular speed of a rotating platform changes from W equals 2.8 rads/S to W equals 6.8 rad/S at a constant rate as a platform moves through an angle 5.5 rad. The platform has a radius of R equals 28 cm w0=2.8rad/s w=6.8rad/s 0=5.5 radians r=28cm calculate the angular acceleration of the platform a in rad per second squared calculate the tangential acceleration, aT in meters per second squared of a point on the surface of the platform at the outer edgeA turntable rotates with a constant 2.25 rad/s² angular acceleration. After 4.50 s it has rotated through an angle of 30.0 rad. What was the angular velocity of the wheel at the beginning of this interval?A dentist's drill starts from rest. After 3.50 s of constant angular acceleration it turns at a rate of 2.30 x 104 rev/min. (a) Find the drill's angular acceleration. rad/s2 (b) Determine the angle (in radians) through which the drill rotates during this period. rad
- A wheel experiences an angular acceleration of +4.3 rad/s². After making 6.6 revolutions, it has an angular speed of +45 rad/s. What was the wheel's initial angular velocity?A merry-go-round rotates from rest with an angular acceleration of 1.88 rad/s?. How long does it take to rotate through (a) the first 3.24 rev and (b) the next 3.24 rev? (a) Number i Units (b) Number i UnitsA wheel is initially at rest then rotates with a constant acceleration of 2.0 rad/s2 . What is its angular speed after it has gone through a displacement of 5.0 rad?
- A fan is turned off, and its angular speed decreases from 10.0 rad/s to 6.3 rad/s in 5.0 s. What is the magnitude of the angular acceleration of the fan? 0.86 rad/s2 O 0.74 rad/s2 O 0.37 rad/s2 O 11.6 rad/s2 1.16 rad/s2A wheel, starting from rest, has a constant angular acceleration of 1.5 rad/s2. In a 1.7-s interval, it turns through an angle of 58 rad. How long has the wheel been in motion at the start of this 1.7-s interval?Problem 1: A small rubber wheel is used to drive a large pottery wheel. The two wheels are mounted so that their circular edges touch. The small wheel has a radius of 6.5 cm and accelerates at the rate of 7.5 rad/s2 , and it is in contact with the pottery wheel (radius 24.0 cm ) without slipping. Part A Calculate the angular acceleration of the pottery wheel. Part B Calculate the time it takes the pottery wheel to reach its required speed of 70 rpm .