À turntable 46 cm in diameter starts from rest and makes its first complete revolution in 3.20 s with constant angular acceleration. If it maintains the same acceleration, a) how long will it take the turntable to make its second complete revolution? b) what is the angle (in radians) through which the turntable rotates after 24.0 s? c) what is the linear speed at the edge of the turntable at time 24.0 seconds?

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Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.