For perfectly elastic bodies, the value of coefficient of restitution is
The inherent property of a body which offers reluctance to change its state of rest or uniform motion, is
The centre of gravity of a trapezoidal dam section whose top width is a, bottom width is b and the vertical side is a, from its vertical face is
A particle moves with a velocity of 2 m/sec in a straight line with a negative acceleration of 0.1 m/sec2. Time required to traverse a distance of 1.5 m, is
If G is the Gauge of track, v is velocity of the moving vehicle, g is the acceleration due to gravity and r is the radius of a circular path, the required superelevation is
A Seconds pendulum executes
The height at which the end of a rope of length l should be tied so that a man pulling at the other end may have the greatest tendency to overturn the pillar, is
Effect of a force on a body depends upon its
For the given values of initial velocity of projection and angle of inclination of the plane, the maximum range for a projectile projected upwards will be obtained, if the angle of projection is
Akg boy climbs up a 8 m rope in gymnasiam insec. The average power developed by the boy is approximately
If the linear velocity of a point on the rim of a wheel ofm diameter, ism/sec, its angular velocity will be
A satellite is said to move in a synchronous orbit if it moves at an altitude ofkm with a maximum velocity of about
Energy may be defined as
Varigon's theorem of moments states
Total no of instantaneous centres of a machine having n links, is
One half of a vibration of a body, is called
On a ladder resisting on a smooth ground and leaning against a rough vertical wall, the force of friction acts
In simple harmonic motion, acceleration of a particle is proportional to
A glass ball is shot to hit a wall from a point on a smooth floor. If the ball returns back to the point of projection in twice the time taken in reaching the wall, the coefficient of restitution between the glass ball and the wall is
The acceleration of a particle moving along the circumference of a circle with a uniform speed, is directed
From the circular plate of a diameter 6 cm is cut out a circular plate whose diameter is equal to radius of the plate. The c.g. of the remainder shifts from the original position through
A heavy ladder resting on a floor and against a vertical wall may not be in equilibrium, if
A smooth cylinder lying on its convex surface remains
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