1
JEE Advanced 2013 Paper 1 Offline
Numerical
+4
-0
A uniform circular disc of mass 50 kg and radius 0.4 m is rotating with an angular velocity of 10 rad s-1 about its own axis, which is vertical. Two uniform circular rings, each of mass 6.25 kg and radius 0.2 m, are gently placed symmetrically on the disc in such a manner that they are touching each other along the axis of the disc and are horizontal. Assume that the friction is large enough such that the rings are at rest relative to the disc and the system rotates about the original axis. The new angular velocity (in rad s-1 ) of the system is
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2
IIT-JEE 2011 Paper 1 Offline
Numerical
+4
-0

Four solid spheres each of diameter $$\sqrt 5 $$ cm and mass 0.5 kg are placed with their centers at the corners of a square of side 4 cm. The moment of inertia of the system about the diagonal of the square is N $$ \times $$ 10−4 kg-m2, then N is

IIT-JEE 2011 Paper 1 Offline Physics - Rotational Motion Question 48 English

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3
IIT-JEE 2011 Paper 1 Offline
Numerical
+3
-0

A boy is pushing a ring of mass 2 kg and radius 0.5 m with a stick as shown in the figure. The stick applies a force of 2 N on the ring and rolls it without slipping with an acceleration of 0.2 m/s2. The coefficient of friction between the ground and the ring is large enough that rolling always occurs and the coefficient of friction between the stick and the ring is (P/10). The value of P is _________.

IIT-JEE 2011 Paper 1 Offline Physics - Rotational Motion Question 20 English

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