A force P of 50 N and another force Q of unknown magnitude act at 90° to each other. They are balanced by a force of 130 N. The magnitude of Q is__________?
If the resultant of two forces has the same magnitude as either of the force, then the angle between the two forces is__________?
The angles between two forces to make their resultant a minimum and a maximum respectively are__________?
The resultant of two forces P and Q is R. If Q is doubled, the new resultant is perpendicular to P. Then__________?
A disc of mass 4 kg, radius 0.5m and moment of inertia 3 kg-m2 rolls on a horizontal surface so that its center moves with speed 5 m/see. Kinetic energy of the disc is __________?
The following is in unstable equilibrium__________?
A uniform pyramid and a uniform prism of same height lie with their base on the surface. Which is more stable ?
A rigid body is in a stable equilibrium if the application of any force__________?
Two circular discs of same weight and thickness are made from metals having different densities. Which disc will have the larger rotational inertia about its central axis ?
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__________?
The torque produced by a force depends on__________?
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 ?
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__________?
A cylinder will slip on an inclined plane of inclination 0 if the coefficient of static friction between plane and cylinder is__________?
If the angular distance, 0 = 2t3 – 3t2, the angular acceleration at t = 1 sec. is__________?
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__________?
Instantaneous center is at infinity when the angular velocity is __________?
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 ?
The angle of projection at which the horizontal range and maximum height of a projectile are equal to__________?
A stone is thrown vertically upwards with a vertical velocity of 49 m/sec. It returns to the ground in__________?
If the direction of projection bisects the angle between the vertical and the inclined plane, then the range of projectile on the inclined plane is__________?
The angle of projection at which the horizontal range and maximum height of a projectile are equal to__________?
In a simple harmonic motion, the position of equilibrium is always__________?
The time period of a simple pendulum depends on__________?
The maximum displacement of a particle executing S.H.M. corresponds to__________?
A simple pendulum of length 1 has an energy E when its amplitude is A. If its amplitude is increased to 2 A, the energy becomes__________?
The ratio of kinetic energy and potential energy of a simple harmonic oscillator, at a displacement equal to half its amplitude is given by__________?
Time period and length of a seconds pendulum respectively are__________?
A particle is executing simple harmonic motion in a line 1.0 m long. If the time of one complete vibration is 1 sec, then the maximum velocity of the particle is__________?
Joule is the unit of__________?
A quantity whose dimensions are M2L2 T3 could be the product of__________?
If y is force and x is velocity, then dimensions of —=r are dx2__________?
The dimensions of centrifugal force are__________?
The unit of rotational inertia of a body in C.G.S system is__________?
In SI units, the units of force and energy are respectively__________?
A cable loaded with 10 kN/m of span is stretched between supports in the same horizontal line 100 m apart. If the central dip is 10 m, then the maximum and minimum pull in the cable respectively are__________?
Impulse can be obtained from a__________?
Which of the following is a scalar quantity ?
Coefficient of friction depends on__________?
If a body is lying on a plane whose inclination with the horizontal is less than the angle of friction, then__________?
A ladder of weight ‘w’ rests against a smooth vertical wall, and rests on rough horizontal ground, the coefficient of friction between the ladder and the ground being 1/4. The maximum angle of inclination of the ladder to the vertical, if a man of weight ‘w’ is to walk to the top of it safely, is tan’1 x, where x is__________?
The shape of a suspended cable for a uniformly distributed load over it is__________?
A light rope is loaded with many equal weights at equal horizontal intervals. The points of suspension on the rope lie on a__________?
A ball moving on a smooth horizontal table hits a rough vertical wall, the coefficient of restitution between ball and wall being 1/3. The ball rebounds at the same angle. The fraction of its kinetic energy lost is__________?
A ball is dropped from a height of 16 m on a horizontal floor. If it rebounds to a height of 9 m after striking the floor, the coefficient of restitution between ball and floor is__________?
When a body slides down an inclined surface, the acceleration of the body is given by__________?
A shell travelling with a horizontal velocity of 100 m/sec explodes and splits into two parts, one of mass 10 kg and the other of 15 kg. The 15 kg mass drops vertically downward with initial velocity of 100 m/sec and the 10 kg mass begins to travel at an angle to the horizontal of tan”1 x, where x is__________?
A shell of mass 100 kg travelling with a velocity of 10 m/sec breaks into two equal pieces during an explosion which provides an extra kinetic energy of 20000 Joules. If the pieces continue to move in the same direction as before, then the speed of the faster one must be__________?
Two objects moving with uniform speeds are 5 m apart after 1 second when they move towards each other and are 1 m apart when they move in the same direction. The speeds of the objects are__________?
The angular speed of a car taking a circular turn of radius 100 m at 36 km/hr will be__________?
The condilion for a lifting machine to be reversible is that its efficiency should be__________?

Select the correct statement ?

A. The body centrode rolls on the space centrode
B. The space centrode rolls on the body centrode
C. Both body and space centrodes may role on each other
D. The body centrode never touches space centrode

Correct Answer: The body centrode rolls on the space centrode ✔

Last Updated: January 19, 2019