Physics Help Forum Time it takes a monkey to climb a rope with out breaking it...

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 Oct 25th 2009, 04:27 PM #1 Junior Member   Join Date: Oct 2009 Posts: 14 Time it takes a monkey to climb a rope with out breaking it... A 13.5 kg monkey starts to climb a long rope to reach a banana located at a height of 6.92 m. The rope will snap if the tension exceeds 148.50 N. Calculate the least amount of time the monkey could take to reach the banana without breaking the rope. I don't even know where to start...
Oct 25th 2009, 05:17 PM   #2
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 Originally Posted by Milarkey A 13.5 kg monkey starts to climb a long rope to reach a banana located at a height of 6.92 m. The rope will snap if the tension exceeds 148.50 N. Calculate the least amount of time the monkey could take to reach the banana without breaking the rope. I don't even know where to start...
If the tension of the rope is 148.50 N (the rope won't break), what is the acceleration of the monkey?
Hint :
Spoiler:
Use Newton's second law
.
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 Oct 25th 2009, 08:37 PM #3 Senior Member   Join Date: Sep 2009 Location: india Posts: 409 T-mg=ma, least time, so allow max tension for max acc. so a=(T-mg)/m=1.2m/s^2. use 6.92=1/2 a t^2 to get t=3.4 seconds.

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