what is meant by momentum
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momentum is defined as the product of mass and velocity.
so, first of all draw a circle of radius r. then construct a random chord ab. let the center of the circle be O and that of chord be X. now we know that the centers of mass of the circle and the chord lie on their geometric centers.
therefore the center of mass of the circle and chord is at O and X respectively. We can assume the entire mass of the figures to be concentrated at their centers of mass. This implies that the center of mass of the system will lie on the line joining O and X. (R/3,R/3) and (R/4,R/4) lie on OX. but (R/root2,R/root2) does not lie on OX.
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The quantity of motion of a moving body measured as a product of its mass and velocity is called momentum.
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Similar questions
a.(R/3,R/3)
b.(R/root 2,R/root 2)
c.(R/4,R/4)
d. None of above