Question

A body of mass 200 gram and volume 50 cm cube is put in a bucket containing water will it float or sink ?

Answer 1

Explanation:

Density of body = Mass/Volume

=200/50

=4 g/cc

Density of water = 1 g/cc

Relative Density (R.D.) = Density of body / Density of water

=4 / 1

=4

Since R.D. >  1

The object will sink.

Notes: If R.D. < 1, object will completely float.

           If R.D. = 1, object will float at the surface of the water.

Answer 2

The body will sink.

Given - Mass and volume

Find - If body will sink or float.

Solution - If body will sink or float can be found be calculating relative density.

Density of water = 1 g/cc

Density of body = mass/volume

Density of body = 200/50

Density of body = 4

Relative density = density of body/density of water

Relative density = 4/1

Relative density = 4

Since relative density is greater than 1, hence, the body will sink.

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