The rotational velocity of a satellite is increased bym per second if its launch is done from equator
Two forces of 6 Newtons and 8 Newtons which are acting at right angles to each other, will have a resultant of
If a particle moves with a uniform angular velocity ω radians/sec along the circumference of a circle of radius r, the equation for the velocity of the particle, is
For a simple pendulum, the period of one oscillation is
A point subjected to a number of forces will be in equilibrium, if
The centre of gravity of a plane lamina will not be at its geometrical centre if it is a
When a body moves round a fixed axis, it has
A projectile is fired with a velocity of 100.3 m/sec. at an elevation of 60°. The velocity attained by the projectile when it is moving at a height ofm, is
ω rad/sec is the angular velocity of a crank whose radius is r. If it makes θ° with inner dead centre and obliquity of the connecting rod l is φ, the velocity v of the piston, is given by the equation
A load ofkg was lifted through a distance ofcm. by an effort ofkg which moved through a distance ofcm. The velocity ratio of the lifting machine is
On a mass m describing a circular path of radius r, the centrifugal force
The angle of friction is :
The resultant of two forces acting at right angles is 5 kgf and if they act at an angle of 60°, it is 37 kgf. The magnitudes of the forces are :
Pick up the correct statement from the following. The kinetic energy of a body
A retarding force on a body does not
The unit of force in C.G.S. system of units, is called
A block of weightkg is placed on a horizontal plane. When a horizontal force ofkg is applied, the block is just on the point of motion. The angle of friction is
From a circular plate of a diameter 6 cm is cut out a circle whose diameter is equal to the radius of the plate. The C.G. of the remainder from the centre of circular plate is at a distance of
The force which produces an acceleration of 1 m/sec2 in a mass of one kg, is called
The centre of gravity of a homogenous body is the point at which the whole
Centre of gravity of a thin hollow cone lies on the axis of symmmetry at a height of
A ball of mass 1 kg moving with a velocity of 2 m/sec collides a stationary ball of mass 2 kg and comes to rest after impact. The velocity of the second ball after impact will be
Periodic time of a particle moving with simple harmonic motion is the time taken by the particle for
The product of mass and velocity of a moving a body, is called
A projectile is thrown at an angle a to the horizontal with α velocity v. It will have the maximum centripetal acceleration
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