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secondary 4 | A Maths
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Date Posted: 6 years ago
Views: 274
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Hmm the question A right? I just got the bottom surfaces of the brick how about the top ?
And the b wht r u dojng cant understand
ΔP=Δh·pg
700Pa is not the pressure at the bottom surface. The formula for pressure in fluid is actually the pressure difference between an arbitrary point and a reference point aka datum (normally the water surface).
700Pa is not the pressure at the bottom surface. The formula for pressure in fluid is actually the pressure difference between an arbitrary point and a reference point aka datum (normally the water surface).
Part b: Upward force = (difference in pressure of top and bottom) x (bottom surface area)
Oook but then wht u use the formula for paet b
No special formula. Just (difference in P) x (surface area)
The (1/100)^2 is just converting cm^2 to m^2
The (1/100)^2 is just converting cm^2 to m^2
Ok tq
Tq so much
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