AIPMT 2012 Mains | Rotational Motion Question 41 | Physics

AIPMT 2012 Mains

MCQ (Single Correct Answer)

-1

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

$$\pi $$ s

$${{3\pi } \over 2}$$ s

2$$\pi $$ s

$${\pi \over 2}$$ s

AIPMT 2012 Mains

MCQ (Single Correct Answer)

-1

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

$$\sqrt {{\mu _s}mRg} $$

$$\sqrt {{{Rg} \over {{\mu _s}}}} $$

$$\sqrt {{{mRg} \over {{\mu _s}}}} $$

$$\sqrt {{\mu _s}Rg} $$

AIPMT 2012 Mains

MCQ (Single Correct Answer)

-1

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

AIPMT 2012 Mains Physics - Rotational Motion Question 58 English

AIPMT 2012 Prelims

MCQ (Single Correct Answer)

-1

When a mass is rotating in a plane about a fixed point, its angular momentum is directed along

a line perpendicular to the plane of rotation

the line making an angle of 45^o to the plane of rotation

the radius

the tangent to the orbit

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