ANSWER THIS QUESTION PLEASE BECAUSE TOMORROW IS MY EXAM
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Explanation:
When the man is standing:
Pressure =Force/Area
Force=mg=(80 kg*10 m/s2)=800 N
So
The area here must be multiplied by 2 here,becoz
the area of 1 foot is given in the question but a man stands with 2 feet.
P=800 /2*8×10^−4 sq.m=5*10^5 Pascals.
Note: Do not forget to convert cm2 to m2 !
When the man is standing:
Pressure =Force/Area
Force=mg=(80 kg*10 m/s2)=800 N
So
The area here must be multiplied by 2 here,becoz
the area of 1 foot is given in the question but a man stands with 2 feet.
P=800 /2*8×10^−4 sq.m=5*10^5 Pascals.
Note: Do not forget to convert cm2 to m2 !
ruprekha11:
If 1kgf = 10(nearly) then 80kgf = 800N
plss
help
kgf means kg force.. so we simply multiply weight by gravity.. in this case its 10
so what u said is right when g is 10m/s2
If area = 80cm to the power 2 = 160 cm square = 160*1/10 to the power 4
1sq.cm = 10^-4 sq.m
i multiplied 80 with 2 becoz his weight is on 2 foot and not on 1
ha yes
so 80sq.cm= 80*10^-4sq.m
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