A 120 kg wooden raft (p= 800 kg/m3) floats in a freshwater canal. A) what is the

Question

A 120 kg wooden raft (p= 800 kg/m3) floats in a freshwater canal. A) what is the total volume of the raft. B) what fraction of the raft is submerged? C) if the canal has a diameter of 10 m, and the water flows with a velocity of 4 m/s, how fast will it flow when it reaches the river (diameter= 20m)?
A 120 kg wooden raft (p= 800 kg/m3) floats in a freshwater canal. A) what is the total volume of the raft. B) what fraction of the raft is submerged? C) if the canal has a diameter of 10 m, and the water flows with a velocity of 4 m/s, how fast will it flow when it reaches the river (diameter= 20m)?
A) what is the total volume of the raft. B) what fraction of the raft is submerged? C) if the canal has a diameter of 10 m, and the water flows with a velocity of 4 m/s, how fast will it flow when it reaches the river (diameter= 20m)?

Explanation / Answer

2.) fraction of the raft is submerged is (1000-800)/1000 = 20%

3) 10*10 *4 = 20*20*V

V = 1m/s

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