ICSE Class 9 - Upthrust and Archimedes' Principle Videos

• What is upthrust
• Sir please explain me , how to derive upthrust=v*d*g mathematically..
• respected sir i request you to please explain me this characteristic property of buoyancy:-[given my school module] the upthrust acts on the body in upward direction at the centre of buoyancy i.e. the centre of gravity of the displaced liquid 
• Why there is no change in level of water on melting of floating piece of ice
• Respected Sir/Madam                actually i am not understanding the video of archmedes principle lesson of relative density part.So that can you pls make another video and upload it
• A body whose volume is 100cm^3 weighs 1kgf in air. Find its weight in water.
• What is the cause of upthrust ? At which point it can be considered to act ?                                                     
• Can you do a video class of Archimedes principal and floatation

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