AP Physics B
posted by Taylor .
I have one our part question left that I just don't understand! Please help me!!
Part 1 An 11.6 kg block of metal is suspended from a
scale and immersed in water as in the ﬁgure.
The dimensions of the block are 12.9 cm ×
9.7 cm × 9.7 cm. The 12.9 cm dimension is
vertical, and the top of the block is 5.07 cm
below the surface of the water.
b
T2
Mg
B
What is the force exerted by the water on the top of the block? (Take P0 =
1.013 × 10
5
Pa .) The acceleration of gravity
is 9.8 m/s
2
.
Answer in units of N
Part 2
What is the force exerted by the water on the
bottom of the block?
Answer in units of N
Part 3
What is the reading of the spring scale?
Answer in units of N
Part 4
What is the buoyant force?
Answer in units of N

The force at any point is pressure*area
pressure=heightwater*densitywater*g
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