Q. The centre of gravity of a quadrant of a circle lies along its central radius at a distance of

View solution

Q. A geo-stationary satellite is one which orbits the earth with a velocity of rotation of

View solution

Q. The direction of projection should bisect the angle between the inclined plane and the vertical for a range of a projectile on inclined plane

View solution

Q. A particle moving with a simple harmonic motion, attains its maximum velocity when it passes

View solution

Q. The unit of impulse, is

View solution

Q. The practical units of work, is

View solution

Q. From a solid cylinder of height 8 cm and radius 4 cm, a right circular cone is scooped out on the same base and having the same height as that of the cylinder. The c.g. of the remainder is at a height of

View solution

Q. The unit of moments in M.K.S system, is

View solution

Q. The rotational velocity of a satellite is increased by 450 m per second if its launch is done from equator

View solution

Q. On a mass m describing a circular path of radius r, the centrifugal force

View solution

Q. When a body falls freely under gravitational force, it possesses

View solution

Q. A rigid body suspended Vertically at a point and oscillating with a small amplitude under the action of the force of gravity, is called

View solution

Q. If a ball which is dropped from a height of 2.25 m on a smooth floor attains the height of bounce equal to 1.00 m, the coefficient of the restitution between the ball and floor, is

View solution

Q. The piston of a steam engine moves with a simple harmonic motion. The crank rotates 120 r.p.m. and the stroke length is 2 metres. The linear velocity of the piston when it is at a distance of 0.5 metre from the centre, is

View solution

Q. The frequency of oscillation on moon as compared to that on earth, will be

View solution

Q. Moment of interia of a squares of side fa about an axis through its centre of gravity, is

View solution

Q. When a body slides down an inclined surface, the acceleration (f) of the body, is given by

View solution

Q. The velocity ratio of an inclined plane of inclination θ with horizontal for lifting a load is

View solution

Q. The motion of a particle moving with S.H.M. from an extremity to the other, constitutes

View solution

Q. Two parallel forces 20 kg and 15 kg act. In order that the distance of the resultant from 20 kg force may be the same as that of the former resultant was from 15 kg, the 20 kg force is diminished by

View solution