Q. Time required to stop a car moving with a velocity 20 m/sec within a distance of 40 m, is

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Q. The characteristic of a couple, is :

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Q. If two forces P and Q (P > Q) act on the same straight line but in opposite direction, their resultant, is

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Q. If the angle between the applied force and the direction of motion of a body, is between 90° and 180°, the work done, is called

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Q. The units of moment of inertia of an area, are

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Q. To avoid bending action at the base of a pier,

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Q. Lami's theroem states that

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Q. Pick up the incorrect statement from the following. In case of suspension bridge due to rise in temperature,

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Q. If two forces acting at a point are in equilibrium, they must be equal in magnitude and their line of action must be along

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Q. For lifting a load of 50 kg through a distance of 2.5 cm, an effort of 12.5 kg is moved through a distance of 40 cm. The efficiency of the lifting machine, is

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Q. Power can be expressed as

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Q. A spring scale in a stationary lift shows a reading of 60 kg for a man standing on it. If the lift starts descending at an acceleration of g/5, the scale reading would be

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Q. The resolved part of the resultant of two forces inclined at an angle θ in a given direction is

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Q. The following statement is one of the laws of Dynamic friction

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Q. A 50 kg boy climbs up a 8 m rope in gymnasiam in 10 sec. The average power developed by the boy is approximately

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Q. According to Law of Triangle of Forces

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Q. A Second's pendulum gains 2 minutes a day. To make it to keep correct time its length

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Q. The following is not a law of static friction :

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Q. The velocity of a moving body, is

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Q. The resultant of the forces acting on a body will be zero if the body

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