CBSE Class 9: Thrust and Pressure Videos

• why pressure increases with depth in fluid
• bhai a liquid used to operate the break in a car
• why iron nail sink in water while a boat floats
• find the greatest and least pressure which a metal block of size 5cm*10cm *15cm can exert if the mass of block is 50 kg
• A wooden cuboid has a mass of 8 kg.The length , breadth and height of this wooden cuboid are 100 cm , 50 cm and 20cm respectively.Find the pressure on the floors on which this block is kept.  
• A solid weighs 2.10g in air.its relative density is 8.4.how much the body will weigh in water and in a liquid of relative density 1.2.
• why does rain fall in drops and not pour all together ?  
• Define thrust and pressure
• Give the units for Force, Acceleration due to gravity, Gravitational Constant and Pressure.

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