Monday, February 22, 2010

Convert Row Boat To Sailboat Physics Question?

Physics question? - convert row boat to sailboat

a boat in the form of a particular field: a rectangular base and rectangular sides. His training is 1 meter wide and 3 meters long. Sides are 40 cm high. the empty weight of the boat is 50 kg. Four men, 100 pounds for a boat ride on a freshwater lake. Living with all the men on the boat, how many cm the side of the boat above water? convert kg to grams

1 comment:

lithiumd... said...

To find the answer, you have the fact that a floating object displaces a volume of water use, has a mass equal to the floating object.

The total mass of all objects is 50 100 * 4 = 450 kg. The density of water 1000 kg / m 3 ^ Consequently, the amount of water displaced 0.45 m ^ is 3 Now we have just the high water:

Length * Width * Height = 0.45 m ^ 3
Reorganization:
Height = 0.45 m ^ 3 / (length * width)
Height = 0.45 m ^ 3 / (1 m * 3 m)
height = 0.15 m

A 15 cm under water, so that 40 to 15 = 25 cm remains above water.

Post a Comment