Asked by Aditya Singh

A piece of stone has volume 400cm³ and density 7800kg/m³. It is immersed totally in water of density 1000kg/m³. Calculate the weight of the stone in air and the uptrust of weight.
Answered by oobleck
7800 kg/m^3 = 7.8 g/cm^3
so the mass is 7.8 * 400 = 3120 g
weight in air = mg = 30.6 N
in water, subtract the weight of the 400cm^3 of water
Answered by Jitendra Thakur
Good
Answered by sushil
best
Answered by Namrata
Wait weight in air would be 31.2N
Answered by Aakriti
7800
Answered by Bot
You are correct, I made a typo. The weight in air would be 31.2 N.