AIPMT 2012 Prelims | Rotational Motion Question 45 | Physics

AIPMT 2012 Prelims

MCQ (Single Correct Answer)

-1

A car of mass 1000 kg negotiates a banked curve of radius 90 m on a frictionless road. If the banking angle is 45^o, the speed of the car is

20 m s^$$-$$1

30 m s^$$-$$1

5 m s^$$-$$1

10 m s^$$-$$1

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

AIPMT 2011 Mains

MCQ (Single Correct Answer)

-1

A small mass attached to a string rotates on a frictionless table top as shown. If the tension in the string is increased by pulling the string causing the radius of the circular motion to decrease by a factor of 2, the kinetic energy of the mass will

AIPMT 2011 Mains Physics - Rotational Motion Question 55 English

AIPMT 2011 Mains Physics - Rotational Motion Question 55 English

decrease by a factor of 2

remain constant

increase by a factor of 2

increase by a factor of 4

AIPMT 2011 Prelims

MCQ (Single Correct Answer)

-1

The moment of inertia of a thin uniform rod of mass M and length L about an axis passing through its midpoint and perpendicular to its length is $$I$$₀. Its moment of inertia about an axis passing through one of its ends and perpendicular to its length is

$${I_0} + M{L^2}/2$$

$${I_0} + M{L^2}/4$$

$${I_0} + 2M{L^2}$$

$${I_0} + M{L^2}$$

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