Q.1
Two forces act an angle of 120°. If the greater force is 50 kg and their resultant is perpendicular to the smaller force, the smaller force is
Q.2
M.I. of solid sphere, is
Q.3
A body of weight ‘w’ placed on an inclined plane is acted upon by a force ‘P’ parallel to the plane which causes the body just to move up the plane. If the angle of inclination of the plane is ‘θ’ and angle of friction is ‘φ’, the minimum value of ‘P’, is
Q.4
The following is not a law of static friction:
Q.5
A hoop of radius 3 m weighs 100 kg. It rolls along a horizontal floor so that at its centre of mass has a speed of 200 mm/sec. The work required to stop the hoop is
Q.6
A satellite moves in its orbit around the earth due to
Q.7
Time period and length of a second’s pendulum respectively are
Q.8
A cable loaded with 10 kN/m of span is stretched between supports in the same horizontal line 100 m apart. If the central dip is 10 m, then the maximum and minimum pull in the cable respectively are
Q.9
When a circular wheel rolls on a straight track, then the shape of body centrode and space centrode respectively are
Q.10
Which of the following is a scalar quantity?
Q.11
The motion of a particle is described by the relation x = t²- 10t + 30, where x is in meters and t in seconds. The total distance travelled by the particle from t = 0 to t = 10 seconds would be
Q.12
If ‘α’ is the angular acceleration of a compound pendulum whose angular displacement is ‘θ’, the frequency of the motion is
Q.13
In a simple screw jack, the pitch of the screw is 9 mm and length of the handle operating the screw is 45 cm. The velocity ratio of the system is
Q.14
A sphere is resting on two planes BA and BC which are inclined at 45° and 60° respectively with the horizontal. The reaction on the plane BA will be
Q.15
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
Q.16
A 49 kg lady stands on a spring scale in an elevator. During the first 5 sec, starting from rest, the scale reads 69 kg. The velocity of the elevator will be
Q.17
The angles between two forces to make their resultant a minimum and a maximum respectively are
Q.18
The motion of a bicycle wheel is
Q.19
Minimum pull in a suspended cable with supports at two ends is equal to
Q.20
Pick up the correct statement from the following. The kinetic energy of a body
Q.21
The force polygon representing a set of forces in equilibrium is a
Q.22
The dimensions of Gravitational Universal constant ‘G’ are
Q.23
Effect of a force on a body depends upon its
Q.24
The following statement is one of the laws of Dynamic friction
Q.25
A system of coplanar forces is in equilibrium when
Q.26
One Newton is equivalent to
Q.27
One Joule is equivalent to
Q.28
A uniform pyramid and a uniform prism of same height lie with their base on the surface. Which is more stable ?
Q.29
One Newton force, is
Q.30
On a ladder resting on a rough ground and leaning against a smooth vertical wall, the force of friction acts
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