Q. A particle moves along a straight line such that distance x traversed in t seconds is given by x = t²(t + 1), the acceleration of the particle, will be

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Q. The Law of Polygon of Forces states that

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Q. Parallelogram Law of Forces states, "if two forces acting simultaneously on a particle be represented in magnitude and direction by two adjacent sides of a parallelogram, their resultant may be represented in magnitude and direction by

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Q. Which one of the following statements is true ?

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Q. A projectile is thrown at an angle a to the horizontal with α velocity v. It will have the maximum centripetal acceleration

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Q. The unit of Moment of Inertia of a body, is

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Q. If a body moves in such a way that its velocity increases by equal amount in equal intervals of time, it is said to be moving with

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Q. If the gravitational accelerational at any place is doubled, the weight of a body, will

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Q. The product of mass and velocity of a moving a body, is called

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Q. Engineer's units of force, is

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Q. Joule is the unit of

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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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