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# How to calculate weight of bottle?

help with (ii)

Update:

In newtons please

### 4 Answers

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- Anonymous1 month ago
The sum of the moments about the tipping point must be zero.

bottle weight * 3.2cm = 2.1N * 28cm

bottle weight = 18 N

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- Anonymous1 month ago
Hate complicating easy things : put it on a scale and multiply the read value by g ^_-

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- VamanLv 71 month ago
You must find m g sin theta=2.1.

sin theta=14/sqrt(14^2+3.2^2)=0.97

mass m= 2.1/9.8/0.97=0.22 kg

I hope this is the correct answer.

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- Jeff1 month agoReport
Dude, he is a Mumbai university lecturer. LOL.

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