Homework Help: physics

Posted by oopu on Wednesday, November 30, 2011 at 12:34pm.

Raft is 4.2m wide and 6.4m long. when horse is loaded onto raft, the raft sinks 3 cm deeper into the water. Find the weight of the horse.

physics - drwls, Wednesday, November 30, 2011 at 2:12pm
Horse's weight = (additional displaced water volume) * density of water) * g

The additional displaced water is
delta V = (raft area)*0.030 m

W = (4.2)*(6.4)*(0.03)*1000*9.8 newtons

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