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[" Majt of water with cross section of "6cm^(2)" strikes a "],[" wall at an angle of "60^(@)" to the normal and rebounds "],[" elastically from the wall without losing energy.If the "],[" velocity of the water in the jet is "12m/s" ,the force "],[" acting on the wall is "],[[" (a) "0864N," (b) "86.4N],[" (a) "2N," (d) "7.2N]]

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