An object at rest begins to rotate with a constant angular acceleration. If this object rotates through an angle theta the time t, through what angle did it rotate in the time 1/2
t?
a) 1/2 theta
b) 1/4 theta
c) 3/4 theta
d) 2 theta
e) 4 theta
An object at rest begins to rotate with a constant angular acceleration. If this object rotates...
An object that is initially at rest begins to rotate under a constant angular acceleration of 1.56 rad/s2. How long does it take the object to undergo an angular displacement of 234 rad?
An object has rotational inertia I. The object, initially at rest, begins to rotate with a constant angular acceleration of magnitude a. What is the magnitude of the angular momentum L of the object after time t? Express your answer in terms of I, a, and t.
2. Starting from rest, a disk rotates about its central axis with constant angular acceleration. In 5.0 s, it rotates 25 rad. During that time, what are the magnitudes of (a) the angular acceleration and (b) the average angular velocity? (c) What is the instantaneous angular velocity of the disk at the end of the 5.0 s? (d) With the angular acceleration unchanged through what additional angle will the disk turn during the next 5.0s? 2. Starting from rest, a...
A fan blade starts at rest and begins moving with a constant angular acceleration of 2.00 rad/s2. The blade rotates through an angle of 285 radians in an 11.0 s interval that did not start at t = 0s. How long did it take the blade to reach the beginning of the 11.0-s interval? Answer must be in seconds.
Problem #3 A thin disk begins to rotate from rest with a constant angular acceleration. The disk takes 1.2 sec to make its second complete revolution. Find: (a) the time in sec) it took the disk to make its first revolution; (b) the angular acceleration (in rad/sec) of the disk.
Problem :3 A thin disk begins to rotate from rest with a constant angular acceleration. The disk takes 1.2 sec to make its second complete revolution. Find: (a) the time (in sec) it took the disk to make its first revolution; (b) the angular acceleration (in rad/sec) of the disk.
A thin disk begins to rotate from rest with a constant angular acceleration. The disk takes 1.2 seconds to make its second complete revolution. Find: 1) the time (in sec) it took the disk to make its first revolution; 2) the angular acceleration (in rad/sec2) of the disk.
A discus thrower starts from rest and begins to rotate with a constant angular acceleration of 2.5 rad/s2 . Part A:How many revolutions does it take for the discus thrower's angular speed to reach 6.3 rad/s ? Part B: How much time does this take?
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.
1) The flywheel of a steam engine begins to rotate from rest with a constant angular acceleration of 1.23 rad/s2. It accelerates for 22.7 s, then maintains a constant angular velocity. Calculate the total angle through which the wheel has turned 57.7 s after it begins rotating. Hint:This is rotational motion, with equations for angles similar to those for linear motion. Note that the TOTAL time is given. Answer: ______ deg. 2) A proposed space station includes living quarters in...