If you know an object's average angular speed and it's acceleration for an interval, can you determine the final angular velocity for that interval? Explain.
here
angular speed = 2 * pie / t
by using the first equation of the formula
v = u + a*t
angluar velocity in term of linear velocity is
w = v / r
If you know an object's average angular speed and it's acceleration for an interval, can you...
A centrifuge takes 100.0s to spin up from rest to it's final angular speed with constant acceleration. A point is located 10.0cm from the axis of rotation of the centrifuge moves with a speed of 250.0m/s when the centrifuge is at full speed. (a) What is the final angular speed? (b) What is the average angular acceleration of the centrifuge as it spins up? (c) How many revolutions does the centrifuge make as it goes from rest to it's final...
A ball is slowing down as it rolls on grass in a playground. It's angular acceleration is -1.8rad/s2 and its linear acceleration is -0.045m/s2. a) What is the ball's diameter in centimetres? b) when the ball's speed is 0.14m/s, what is its angular velocity? c) If the ball's initial angular velocity was 9.0 rad/s, how long does it take to come to rest?
What would be the tangential linear acceleration if an object's angular velocity was increased from 1 to 73 rad/s in 4s about a 5m radius of rotation (in m/s)?
The initial angular velocity and the angular acceleration of four rotating objects at the same instant in time are listed in the table that follows. For each of the objects (a), (b), (c), and (d), determine the final angular speed after an elapsed time of 2.2 s. Initial angular velocity ω0 Angular acceleration α (a) +15 rad/s +5.0 rad/s2 (b) +15 rad/s -5.0 rad/s2 (c) -15 rad/s +5.0 rad/s2 (d) -15 rad/s -5.0 rad/s2 (a) Final angular speed = ---Select---...
1) Explain how an object's average speed could be, say 60 m/s, while its average velocity is zero. Is this also the case for Instantaneous velocity and instantaneous speed why or why not? 2) Explain how to compare velocities as measured in two different frames of reference one of which is moving relative to the other
A machine part rotates at an angular speed of 0.70 rad/s; its speed is the increased to 2.6 rad/s at an angular acceleration of 0.51 rad/s2. Find the angle through which the part rotates before reaching this final speed.A rotating wheel requires 9.00 s to rotate 30.0 revolutions. Its angular velocity at the end of the 9.00 s interval is 97.0 rad/s. What is the consta angular acceleration of the wheel?
The initial angular velocity and the angular acceleration of four rotating objects at the same instant in time are listed in the table that follows. For each of the objects (a), (b), (c), and (d), determine the final angular speed after an elapsed time of 5 s. Initial angular velocity ω0 Angular acceleration α (a) +12.0 rad/s +2.0 rad/s2 (b) +12.0 rad/s -2.0 rad/s2 (c) -12.0 rad/s +2.0 rad/s2 (d) -12.0 rad/s -2.0 rad/s2
The initial angular velocity and the angular acceleration of four rotating objects at the same instant in time are listed in the table that follows. For each of the objects (a), (b), (c), and (d), determine the final angular speed after an elapsed time of 5 s. Initial angular velocity ω0 Angular acceleration α (a) +30.0 rad/s +5.0 rad/s2 (b) +30.0 rad/s -5.0 rad/s2 (c) -30.0 rad/s +5.0 rad/s2 (d) -30.0 rad/s -5.0 rad/s2
A wheel starts from rest and rotates with constant angular acceleration to reach an angular speed of 12 rad/s in 3.0 s. Find (a) the magnitude of the angular acceleration of the wheel and (b) the angle in radians through which it rotates in this time interval.
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sulution please
During a certain time interval, the angular position of a swinging door is described by 0 = 4.90 + 9.8t + 2.05t2, where 0 is in radians and t is in seconds. Determine the angular position, angular speed, and angular acceleration of the door at the following times. (a) t = 0 0 = 4.90 rad W = 9.8 rad/s = 4.2 Calculus methods can be used to determine the velocity and acceleration from O(t). rad/s2 α...