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Mechanics

Scorching goIITian

Joined:	15 Jul 2007
Post:	245

19 Feb 2009 20:56:34 IST

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248

Some confusion

None

Okay for this question I got the correct angle 37 degree and I even got the acceleration as 7.5 m/s^2. But, I am not able to get the correct value of F. How do I calculate it correctly, please help ?

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pink_ele

Blazing goIITian

Joined: 16 Jan 2007

Posts: 1836

19 Feb 2009 22:05:43 IST

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all other forces being internal...

we consider whole as a sytem....

F=(3m+M)a

a=172.5....so d must be d option....

Akash

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Joined: 7 Jan 2009

Posts: 364

19 Feb 2009 22:56:49 IST

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plz work out the whole problem

Bhaskar Tetarbe

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Joined: 15 Jul 2007

Posts: 245

20 Feb 2009 12:33:47 IST

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Pink_ele, the answer is not none of these. And, I cudnt understand your technique.

pink_ele

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Joined: 16 Jan 2007

Posts: 1836

20 Feb 2009 12:42:05 IST

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i simply did....

net external force=net massx acc

Bhaskar Tetarbe

Scorching goIITian

Joined: 15 Jul 2007

Posts: 245

21 Feb 2009 12:28:12 IST

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Anyone plss help !

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