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General
Easy
Question
From the previous question in the reference frame attached to the center f inertia, the total kinetic energy of the two particles is
The correct answer is:
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A closed system consists of two particles of masses 
and 
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and 
. In the reference frame attached to the center of inertia, the magnitude of momentum of each particle is
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physics-General
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A equilateral triangular, square and circular plates of same thickness and made up of different materials are arranged is shown in figure.
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The ratio of their respective densities are . The centre of mass of the arrangement lies
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The centre of mass of a triangular lamina of uniform density of height h is
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A semi-circular plate with cavity having inner radius R and outer radius 2R with uniform density is a shown. The centre of mass of the thin plate is at
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A rod AB of length 10 cm, has its mass per unit length varying from 1 kg/m cat end A ) to 2Kg/m ( at end B). The distance of centre of mass from end B is :
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If a square of side R/2 is removed from a uniform circular disc of radius R as shown in the figure, the shift in centre of mass is
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If a triangular sheet is removed from one edge of a uniform rectangular sheet as shown in the figure, then the shift in the centre of mass of the system is
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The co-ordinates of centre of mass of letter E which is cut from a uniform metal sheet are (Take origin at bottom left corner and width of letter 2 cm every where)
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Two blocks of equal mass are tied with a light string which passes over a massless pulley as shown in figure. The magnitude of acceleration of centre of mass of both the blocks is (neglect friction everywhere)
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physics-General
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The centre of mass coordinates of a block of shape shown in fig. is
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Seven homogeneous blocks each of length L are arranged as shown in th figure. Each block is displaced with respect to the one in contact by L/10. The x-coordinate of the centre of mass of the system relative to the origin O is
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A rod consists of two parts made up of a homogeneous material with square type cross - section as shown. The position of C.M from the end ' O ' is
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