Answer:
h = 3.125 cm
Explanation:
We are given;
Width; w = 5 cm
Length; l = 8 cm
Mass; m = 150 g
Density;ρ = 1.2 g/mL
Formula for buoyant force is
Fb = ρgV = ρghA
Now, V is volume and it is given by;
V = mass/density = 150/1.2
V = 125 mL
Converting to cm³ gives; V = 125 cm³
Thus:
Since ρgV = ρghA
ρ and g will cancel out to give;. V = hA
h is the displaced liquid
A is Area = width × length = 5 × 8 = 40 cm².
Thus; 125 = 40h
h = 125/40
h = 3.125 cm
Answer:
3.75 cm
Explanation:
You can divide the boat's mass by the product of width x length.
8cm x 5cm = 40
150/40 =
3.75
