Answer the following questions in brief. 3. a.Aplastic cube is released in water. Will it sink or come to the surface of water?
b.Why do the load carrying heavy vehicles have large number ofwheels?
c. How much pressure do we carry on our heads? Why don't we feel it?
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1.The plastics will come to the surface of water
2. The load carrying on vehicles have large numbers of wheels because if there is only a few wheels the area of contact will be less and it is not able to carry the heavy load
3. when we carry a heavy thing on our head we will not feel because here the area of contact is more when the area of contact is more the force will be separated to every part which is in contact.
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