Q. The maximum velocity of a body vibrating with a simple harmonic motion of amplitude 150 mm and frequency 2 vibrations/sec, is

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Q. Pick up the correct statement from the following :

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Q. If the radius of the earth is 600 km the height of a mountain above sea level at the top of which a beat seconds pendulum at sea level, looses 27 seconds a day, is

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Q. The total time of collision and restitution of two bodies, is called

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Q. The length of a Second's pendulum, is

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Q. If the tension in a cable supporting a lift moving upwards is twice the tension when the lift is movng downwards, the acceleration of the lift, is

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Q. One Newton force, is

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Q. The masses of two balls are in the ratio of 2 : 1 and their respective velocities are in the ratio of 1 : 2 but in opposite direction before impact. If the coefficient of restitution is 1/2 , the velocities of separation of the balls will be equal to

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Q. The angle which an inclined surface makes with the horiontal when a body placed on it is on the point of moving down, is called

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Q. Work may be defined as

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Q. The centre of gravity of a triangle is at the point where three

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Q. The forces which meet at one point and have their lines of action in different planes are called

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Q. At a given instant ship A is travelling at 6 km/h due east and ship B is travelling at 8 km/h due north. The velocity of B relative to A is

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Q. The equation of motion of a particle starting from rest along a straight line is x = t³ - 3t² + 5. The ratio of the accelerations after 5 sec and 3 sec will be

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Q. The locus of the instantaneous centre of a moving rigid body, is

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Q. If three rigid rods are hinged together to form a triangle and are given rotary as well as translatory motion, the number of instantaneous centres of the triangle, will be

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Q. The mechanical advantage of an ideal machine is 100. For moving the local through 2 m, the effort moves through

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Q. When a body in equilibrium undergoes an infinitely small displacement, work imagined to be done, is known as

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Q. To attain the synchronous orbit, the launch of a satellite, is done from a place

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Q. A bullet weighing 200 g is fired horizontally with a velocity of 25 m/sec from a gun carried on a carriage which together with the gun weighs 100 kg. The velocity of recoil of the gun, will be

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