1.
A symmetrical body is rotating about its axis of symmetry, its moment of inertia about the axis of rotation being 2 kg -m2 and its rate of rotation 2 revolutions/see. The angular momentum of the body in kg-m2/sec is_____________________?
2.
The torque produced by a force depends on__________________?
1) the magnitude of the force
2) the direction of the force
3) the’point of application of the force relative to origin
The correct answer is?
1) the magnitude of the force
2) the direction of the force
3) the’point of application of the force relative to origin
The correct answer is?
3.
A sphere and a cylinder having the same mass and radii start from rest and roll down the same inclined plane. Which body gets to the bottom first ?
4.
A solid cylinder of mass M and radius R rolls down an inclined plane without slipping. The acceleration of center of mass of rolling cylinder is________________?
5.
A cylinder will slip on an inclined plane of inclination 0 if the coefficient of static friction between plane and cylinder is_____________________?
6.
If the angular distance, 0 = 2t3 – 3t2, the angular acceleration at t = 1 sec. is__________________?
7.
A particle moves in a straight line and its position is defined by the equation x = 6 t2 – t3 where t is expressed in seconds and x in meters. The maximum velocity during the motion is_________________?
8.
Instantaneous center is at infinity when the angular velocity is _________________?
9.
A 2 m long ladder rests against a wall and makes an angle of 30° with the horizontal floor. Where will be the instantaneous center of rotation when the ladder starts slipping ?
1) 1.0 in from the wall
2) 1.732 m from the wall
3) 1.0 m above the floor
4) 1.732 m above the floor
The correct answer is?
1) 1.0 in from the wall
2) 1.732 m from the wall
3) 1.0 m above the floor
4) 1.732 m above the floor
The correct answer is?
10.
The angle of projection at which the horizontal range and maximum height of a projectile are equal to_____________________?
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