Question

A 71 kg girl dives off a raft 2.34 square meters floating in a freshwater lake. By how much does the raft rise in cm?
Write your answer correct to two decimal places.

Answer 1

71 kg = volume displaced * 1000 kg/m^3
so
V = 71/1000 m^3

area * delta h = volume = 71/1000
2.34 * delta h = 71/1000

delta h = 30.34 /1000 in meters
= 30.34/10 in cm
= 3.03 cm

Answer 2

i think that's wrong !!!

Answer 3

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