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1.
A semi-circular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi-cricular disc and horizontal surface is \i. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force w
2.
A 10-lbm object is acted upon by a 4-lb force. What is the acceleration in ft/min2?
3.
The unit of force in S.I. units is
4.
The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is as per the principle of
5.
Frictional force encountered after commencement of motion is called
6.
A number of forces acting at a point will be in equilibrium if
7.
A projectile is fired at an angle B to the vertical. Its horizontal range will be maximum when angle B is
8.
What horizontal force P can be applied to a 100-kg block in a level surface with coefficient of friction of 0.2, that will cause an acceleration of 2.50m/s^2?
9.
Which of the following is not the unit of distance ?
10.
A single force and a couple acting in the same plane upon a rigid body
11.
Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one
12.
A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve
13.
A particle moves along a straight line such that distance (x) traversed in t seconds is given by x = t^2 (t – 4), the acceleration of the particle will be given by the equation
14.
Angle of friction is the
15.
If rain is falling in the opposite direction of the movement of a pedestrain, he has to hold his umbrella
16.
A heavy ladder resting on floor and against a vertical wall may not be in equilibrium, if
17.
The unit of work or energy in SI units sis
18.
Tangent of angle of friction is equal to
19.
In detennining stresses in frames by methods of sections, the frame is divided into two parts by an imaginary section drawn in such a way as not to cut more than
20.
A skier wishes to build a rope tow to pull herself up a ski hill that is inclined at 15° with the horizontal. Calculate the tension needed to give the skier’s 54-kg body an acceleration of 1.2 m/s2. Neglect friction
