833 ПОМОГИТЕ УМОЛЯЮ. Created by Yana132111. fizika-ru

833 ПОМОГИТЕ УМОЛЯЮ...

November 2021 1 7 Report

833
ПОМОГИТЕ УМОЛЯЮ

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magma19821981 делаем так : y = yo + Vo*t + at^2/2y = yo+Vo*t - at^2/2a = 0.5 м/с^2t = 0.5 сm = 0.08 кгVo = 1 м/с
В начальный момент времени Wp =m*g*h = m*g*yo = 0.08*10*1.2 = 0.98 ДжWk = m*Vo^2/2 = 0.04Wm = Wk + Wp = 1.02 ДжВ момент времени = 0.5 секWk = m*V^2/2V = Vo - 2a*t = 1 - 1*0.5 = 0.5 м\с
Wk = 0,01 ДжWp = y*g*m = (1.2+0.5-0.125) *10 *0.08 = 1.26 ДжWм = Wp + Wk = 1,26+0,01 =1.27 Дж

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