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1.
Forces are called coplanar when all of them acting on body lie in
2.
A flywheel on a motor goes from rest to 1000 rpm in 6 sec. The number of revolutions made is nearly equal to
3.
Which of the following do not have identical dimensions ?
4.
The ratio of limiting friction and normal reaction is known as
5.
Limiting force of friction is the
6.
According to principle of transmissibility of forces, the effect of a force upon a body is
7.
Coefficient of friction is the
8.
A cable with a uniformly distributed load per horizontal meter run will take the following shape
9.
If a number of forces act simultaneously on a particle, it is possible
10.
Forces are called concurrent when their lines of action in
11.
The maximum frictional force which comes into play when a body just begins to slide over another surface is called
12.
If three forces acting in different planes can be represented by a triangle, these will be in
13.
A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the s
14.
If rain is falling in the opposite direction of the movement of a pedestrain, he has to hold his umbrella
15.
A 50-kilogram block of wood rest on top of the smooth plane whose length is 3 m, and whose altitude is 0.8 m. How long will it take for the block to slide to the bottom of the plane when released?
16.
The magnitude of two forces, which when acting at right angle produce resultant force of lO lbs and when acting at 60° produce resultant of l3 lbs. These forces are
17.
A framed structure is perfect if it contains members equal to
18.
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
19.
Angle of friction is the
20.
Frictional force encountered after commencement of motion is called
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