cosα=0.9 L=2 м m=0.2 кг р=?
h=L-L*cosα - высота подъема
v=√(2*g*h)=√(2*g*L*(1-cosα))
p=m*v=m*√(2*g*L*(1-cosα))=0.2*√(2*10*2*(1-0.9))=0.4 кг*м/с
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cosα=0.9 L=2 м m=0.2 кг р=?
h=L-L*cosα - высота подъема
v=√(2*g*h)=√(2*g*L*(1-cosα))
p=m*v=m*√(2*g*L*(1-cosα))=0.2*√(2*10*2*(1-0.9))=0.4 кг*м/с
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