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facing each other in the parking lot. They push oﬀ each other and move in opposite directions, with Margie moving at a constant speed of 11 ft/s. At what speed is Bill moving? Answer in units of ft/s

thisis a conservation of momentum problem before they pushed off, the had zero total momentum, therefore, afterward, they will have zero total momentum Margie has a total momentum of 41kg x 11 ft/s in one direction, so Bill must have the same in the opposite direction, so this momentum of 61V = 41kgx11ft/s or V = 7.4ft/s in the opposite direction ( or 2.2m/s in metric)

BY the law of momentum conservation:- =>m1u1 + m2u2 = m1v1 + m2v2 =>0 + 0 + = 41 x (11 x c) + 61 x (v2 x c) =>v2 = - [41 x 11 x c]/[61 x c] =>v2 = -7.39 ft/sec {-ve indicating the direction is opposite} [c is the unit convertor from ft/sec to m/sec]

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Clothes - reflexion of a way of life and requirements of the people representing various cultures and beliefs. Conformity of clothes of certain estate, a social class or a caste to material possibilities, and also the primary goals which societies were assigned to this layer, was obligatory at all times. To dare to wear magnificent dresses with вшитыми the rigid clamps expanding a skirt till three-metre diameter, the simple peasants who were engaged in cattle and a kitchen garden hardly could.

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Mike O Ckrash

Art-Fashion

fashion245@gmail.com

W 13th Ave

Denver , Colorado , 80010 USA

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