12) m1=3 кг m2=2 кг μ=0,01 F=10 H a=? T=?
F-μ*(m1*g+m2*g)=(m1+m2)*a
a=(F-μ*g*(m1+m2))/(m1+m2)=(10-0.01*10*(3+2))/(3+2)=2.1 м/с2
T-μ*m2*g=m2*a
T=m2*(a+μ*g)=2*(2.1+0.01*10)=4.4 H
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13) F1=4 H a=0.2 μ=0.5 F=?
F-(m*g+μ*F1)=m*a
F=m*(a+g)+μ*F1=50*(0.2+10)+0.5*4=512 H
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12) m1=3 кг m2=2 кг μ=0,01 F=10 H a=? T=?
F-μ*(m1*g+m2*g)=(m1+m2)*a
a=(F-μ*g*(m1+m2))/(m1+m2)=(10-0.01*10*(3+2))/(3+2)=2.1 м/с2
T-μ*m2*g=m2*a
T=m2*(a+μ*g)=2*(2.1+0.01*10)=4.4 H
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13) F1=4 H a=0.2 μ=0.5 F=?
F-(m*g+μ*F1)=m*a
F=m*(a+g)+μ*F1=50*(0.2+10)+0.5*4=512 H
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