Elvis
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CAN ANYONE HELP ME, PLEASE ! I DON'T KNOW HOW TO SOLVE THIS PROBLEM
A raft is made of 10 logs lashed together. Each is 30cm in diameter and has a length of 5.5m. How many people can the raft hold before they start getting their feet wet,assuming the average person has a mass of 70 kg? Do not neglect the weight of the logs! Assume the specific gravity of wood is 0.60.
SG=0.60
r=1/2*30=15cm
I know
F/A = mg/A
F= mg =pAHg were p-->density
p=m/v
pressure=P=F/A
A raft is made of 10 logs lashed together. Each is 30cm in diameter and has a length of 5.5m. How many people can the raft hold before they start getting their feet wet,assuming the average person has a mass of 70 kg? Do not neglect the weight of the logs! Assume the specific gravity of wood is 0.60.
SG=0.60
r=1/2*30=15cm
I know
F/A = mg/A
F= mg =pAHg were p-->density
p=m/v
pressure=P=F/A