I am having trouble figuring this out. " Two blocks are connected by a uniform(adsbygoogle = window.adsbygoogle || []).push({});

rope with a mass of [tex]4.00kg[/tex]. An upward force of [tex]200N[/tex] is

applied. ...a)what is the [tex]\vec{a}[/tex] of the system and what is the

tension at the top of the rope.

The [tex]\vec{a}[/tex] of the system would have to be

[tex]\frac{\sum{\vec{F}}}{m}=a[/tex]

[tex]\sum{\vec{F}}=200N-(m_1+m_2+m_3)g[/tex]

which is [tex]200N-147N=53N[/tex]

and then [tex]\frac{53N}{15.0g}=\vec{a}[/tex]

so now for the tension of the top of the rope. What are the forces acting on the top of the rope...there is the [tex]200N[/tex]...and weight of the box hanging from the rope?

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# Homework Help: Tension homework question

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