Rotational MotionEasy
Question
A phonograph turn-table rotating at 78 rev/min slows down and stops in 30 sec after the motor in turned off. Then the revolutions made by it in this time are :-
Options
A.19.5
B.39
C.78
D.156
More Rotational Motion Questions
Ratio of masses and radii of two circular rings are 1 : 2 and 2 : 1 respectively then ratio of moment of inertia will be...A disc of radius R = 2m moves as shown in the figure, with a velocity of translation of 6v0 of its centre of mass and an...A wheel has angular acceleration of 3.0 rad/s. In a time of 2 s it has rotated through an angle (in radian)of...A uniform rod AB of length is free to rotate about a horizontal axis passing through A. The rod is released from rest fr...A non uniform rod OA of liner mass density λ = λ0x (λ0 = co nst.) is suspended from ceiling with hinge jo...