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The Nobel laureate ABDUS SALAM is known for discovery of
(a)Wave nature of matter
(b)Cyclotron
(c)Unification of weak and electromagnetic interactions
(d)Cosmic radiation

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Important Questions on Laws of Motion
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A rectangular frame of some mass has to be suspended symmetrically by two mass-less strings of equal length on two supports. It can be done in one of the three following ways as shown in below figures. The tension in the strings will be

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A mass is hung on a rope tied between two poles as shown in the figure. The tension and in the two parts of the rope are (in )

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A ball of mass which is initially at rest is hit by a bat. The bat remains in contact with the ball for . During this time period the force on the ball by the bat is given as where and are constants. The ball's speed immediately as it loses contact with the bat is . The correct relation between and is

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Two horizontal forces and act on a ball of mass . The forces are such that and . If the component of velocity changes linearly by in , the angle between two forces is

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A particle is moving in the plane and its coordinates at any time are given by where, . The direction of the force it experiences at, is,

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An object of mass moves at a constant speed of A constant force, which acts for on the object, gives it a speed, in opposite direction. The force acting on the object is?

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Find the position of the particle which starts from rest at the time, given the force acting on the particle with a mass of is

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Two masses are placed in contact with each other on a frictionless table
(i) A force is applied as in fig. Let denotes the force on due to .
(ii) A force of the same magnitude is applied as in fig (b). Let denotes the force on due to .
The ratio is

