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svirdi
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object A OF mass 5kg connected by a light, inextensible string passes over smooth pulley to box B of mass 4kg. There is an object C of mass 2kg resting on the horiz floor of the box. find acc


EQ:

A: t-mg=ma
B:4g+2g-t=7a
c:t-2g=2a

not too sure about c?
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TeeEm
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(Original post by svirdi)
object A OF mass 5kg connected by a light, inextensible string passes over smooth pulley to box B of mass 4kg. There is an object C of mass 2kg resting on the horiz floor of the box. find acc


EQ:

A: t-mg=ma
B:4g+2g-t=7a
c:t-2g=2a

not too sure about c?

post a picture of the question from the book and your workings as an attachment.

It is easier and quicker for everybody
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TenOfThem
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(Original post by svirdi)
object A OF mass 5kg connected by a light, inextensible string passes over smooth pulley to box B of mass 4kg. There is an object C of mass 2kg resting on the horiz floor of the box. find acc


EQ:

A: t-mg=ma
B:4g+2g-t=7a
c:t-2g=2a

not too sure about c?
I am struggling to see what you have done here

In A you know that he mass is 5
In B why do you have 7a
Is C to do with object C - if so it has no tension related to it
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svirdi
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svirdi
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TenOfThem
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(Original post by svirdi)
...
Your equations for A and B are fine now - use them to find a and T





As I have already pointed out C does not have an equation with T
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