1
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Change Language
A rod PQ of mass M and length L is hinged at end P. The rod is kept horizontal by a massless string tied to point Q as shown in figure. When string is cut, the initial angular acceleration of the rod is

NEET 2013 Physics - Rotational Motion Question 67 English
A
$${{2g} \over L}$$
B
$${{2g} \over {2L}}$$
C
$${{3g} \over {2L}}$$
D
$${g \over L}$$
2
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Change Language
A circular platform is mounted on a frictionless vertical axle. Its radius R = 2 m and its moment of inertia about the axle is 200 kg m2. It is initially at rest. A 50 kg man stands on the edge of the platform and begins to walk along the edge at the speed of 1 ms$$-$$1 relative to the ground. Time taken by the man to complete one revolution is
A
$$\pi $$ s
B
$${{3\pi } \over 2}$$ s
C
2$$\pi $$ s
D
$${\pi \over 2}$$ s
3
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Change Language
A car of mass m is moving on a level circular track of radius R. If $$\mu $$s represents the static friction between the road and tyres of the car, the maximum speed of the car in circular motion is given by
A
$$\sqrt {{\mu _s}mRg} $$
B
$$\sqrt {{{Rg} \over {{\mu _s}}}} $$
C
$$\sqrt {{{mRg} \over {{\mu _s}}}} $$
D
$$\sqrt {{\mu _s}Rg} $$
4
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Change Language
The moment of inertia of a uniform circular disc is maximum about an axis perpendicular to the disc and passing through

AIPMT 2012 Mains Physics - Rotational Motion Question 58 English
A
B
B
C
C
D
D
A
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