The unit of impulse, is
The horizontal reaction at the support A of the structure shown in below figure, is
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
The phenomenon of collision of two elastic bodies takes place because bodies
M.I. of solid sphere, is
If two equal forces of magnitude P act at an angle θ, their resultant, will be
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
When a body slides down an inclined surface, the acceleration (f) of the body, is given by
If a ball which is dropped from a height of 2.m on a smooth floor attains the height of bounce equal to 1.m, the coefficient of the restitution between the ball and floor, is
The point about which combined motion of rotation and translation of a rigid body takes place, is known as
Periodic time of body moving with simple harmonic motion, is
The Centre of gravity of axx 5 cm T section from its bottom, is
If the resultant of two forces P and Q acting at an angle θ makes an angle α with P, then tan α equals
The unit of moments in M.K.S system, is
A body of weightg appears to weightg when weighed by a spring balance in a moving lift. The acceleration of the lift at that moment was
If the velocity of projection is 4 m/sec and the angle of projection is α°, the maximum height of the projectile from a horizontal plane, is
The velocity ratio of an inclined plane of inclination θ with horizontal for lifting a load is
The piston of a steam engine moves with a simple harmonic motion. The crank rotatesr.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
Newton's law of Collision of elastic bodies states that when two moving bodies collide each other, their velocity of separation
A vehicle weighing w kg is to run on a circular curve of radius r. If the height of its centre of gravity above the road level is h and the distance between the centres of wheels is 2a, the maximum velocity, in order to avoid over turning, will be
The practical units of work, is
Pick up the correct statement from the following. The kinetic energy of a body
A particle is dropped from the top of a towerm high and another is projected upwards from the foot of the tower to meet the first particle at a height of 15.9 m. The velocity of projection of the second particle is
On a ladder resting on a rough ground and leaning against a smooth vertical wall, the force of friction acts
For a self-locking machine, the efficiency should be
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