weight of water?

Question

a water bed has deminsions of 1.83 m X 2.13 m X 0.229 m. the floor of the bedroom will tolerate an additional weight of no more than 6660 N. find the weight of the water in the bed to determine whether it should be purchased

Answer 1

Well, we know the density of water is about 1g/cm^3. (.998)

This bed is 183cm x 213cm x 22.9cm.

This gives a volume of 892619.1 cm^3.

Easy enough - This gives a total mass of water of 892619.1 grams.

Let's get that to Newtons (kg m/s^2)...So, first up, we convert grams to kilograms by dividing by 1000 - 892.6 kilograms.

We know that the acceleration due to gravity is 9.8 m/s^2.

F=ma.

F=892.6 kg * 9.8 m/s^2 = 8747.7 N

The room can only handle 6660N so we'd better not buy that bed!

Orion

Answer 2

WHAT IS THE WEIGHT OF A WATERBED ? It depends on the size and style of bed. It can vary from 200 lbs up to 1800 lbs (90 kgs - 800 kgs). The soft-sided divan models are lighter, size for size, than rigid-sided models. A full depth, king size soft-sided divan bed is the equivalent weight of about 5-6 adults

How much does a waterbed weigh?

A waterbed can weigh up to 1500lbs, but because the weight is distributed over a large area, weight is not a concern. A waterbed weighs less per square foot than a refrigerator. Any house built to modern building codes can handle the weight of a waterbed without a problem.

Answer 3

Weight = mass* gravitational acceleration with the mass equal to the volume * density.
Weight = Volume * Density * Gravity
....for volume just multiply the bed's dimensions together.
Weight = 1.83m X 2.13m X 0.229m X 1000Kg/m^3 X 9.8 m/s^2
Weight = 8748 N
STEP AWAY FROM THE BED!!!

Answer 4

water weighs about 8 pounds to the gallon, find out how many gallons the water bed is, and multiply.

Answer 5

the water weighs 893 kg. What kind of unit is N?