The balance wheel of a watch oscillates with angular amplitude 1.7π rad and period 0.49 s. Find (a) the maximum angular speed of the wheel, (b) the angular speed of the wheel at displacement 1.7π/2 rad, and (c) the magnitude of the angular acceleration at displacement 1.7π/4 rad.
The balance wheel of a watch oscillates with angular amplitude 1.7π rad and period 0.49 s....
The balance wheel of a watch oscillates with angular amplitude 0.63? rad and period 0.36 s. Find (a) the maximum angular speed of the wheel, (b) the angular speed of the wheel at displacement 0.63?/2 rad, and (c) the magnitude of the angular acceleration at displacement 0.63?/4 rad.
A wheel accelerates with a constant angular acceleration of 4.5 rad/s2 from an initial angular speed of 1.0 rad/s. a. What is the wheel's angular displacement during the first 2.0 s? b. What is its angular speed at that ?
A wheel 1 m in radius starts rotating from rest with a constant angular acceleration of 4 rad/s2 At t = 2 s find: a) the angular speed of the wheel; b) the tangential speed of the wheel at the rim; c) the centripetal and tangential acceleration of the wheel at the rim; d) the angular displacement.
18. A wheel is spinning about a horizontal axis with angular speed 150 rad/s and with its angular velocity pointing east. Find the magnitude and direction of its angular velocity after an angular acceleration of 40 rad/s, pointing 64° west of north, is applied for 5.0 s.
A wheel (radius = 0.20 m) starts from rest and rotates with a constant angular acceleration of 2.0 rad/s2. At the instant when the angular velocity is equal to 1.2 rad/s, what is the magnitude of the total linear acceleration (in m/s2) of a point on the rim of the wheel? 0.29 0.4 0.49 0.69
a. A rotating wheel requires 7.00 s to rotate 25.0 revolutions. Its angular velocity at the end of the 7.00 s interval is 97.0 rad/s. What is the constant angular acceleration of the wheel? b. A machine part rotates at an angular speed of 0.52 rad/s; its speed is then increased to 3.2 rad/s at an angular acceleration of 0.52 rad/s2. Find the angle through which the part rotates before reaching this final speed. c. A dentist's drill starts from...
After 11.6 s, a spinning roulette wheel has slowed down to an angular velocity of 2.34 rad/s. During this time, the wheel has an angular acceleration of -6.26 rad/s2. Determine the angular displacement of the wheel.
A 100-g object oscillates with a period of 6.4 s. At time 0.0 s the object is at maximum amplitude. A) When is the next time it will have a maximum speed? a) 6.4 s b) 3.2 s c) 0.0 s d) 1.6 s B) When is the next time it will be at maximum amplitude? a) 6.4 s b) 3.2 s c) 0.0 s d) 1.6 s C) What is its frequency of oscillations? a) 6.4 Hz b) 15.6 Hz...
16. A wheel, released from rest, is rotating with constant angular acceleration of 2.6 rad/s2. At 6.0 s after its release: (a) What is its angular speed? (b) Through what angle has the wheel turned? (c) How many revolutions has it completed? (d) What is the linear speed and what is the magnitude of the linear acceleration of point 0.30 m from the axis of rotation? Ans: 16rads, 47 rad, 7.4rev, 4. m/s, 73 m/s2)
2. (1 point) A wheel starts from rest with an angular acceleration of 2.0 rad/s 2 What is its angular speed at the instant it has finished 10 full rotations? (a) 8.9 rad/s (b) 16 rad/s (c) 22 rad/s (d) 32 rad/s