CBSE Class 9 - Force Videos

• boxes a and b each of mass 2 kg having dimension 20 cm to 10 cm into 8 cm and 40 cm into 30 cm and to 15 January respective at kept on a horizontal surface as shown the figure the ratio of pressure accepted by box a on the surface accepted by box be on the surface is take g 10 m per second
• a bus accelerates at 2m per second for first 10 second after the start and retards at 1m per second for next 10 second find the total distance covered by the bus
• The weight of a boy on the surface of earth is 294N. Find its mass.
• A block of wood is kept on a horizontal table the mass of the wooden block is 6 kg and its dimensions are 10 into 10 into 10 what is the pressure exerted by the wooden block on the table
• Unbalanced force can also change the shape,size of the body as Balanced force do
• A nail is driven into a wooden board by using a hammer. the impact of hammer on the head of the nail reduces the thrust of 25N. If the area of head is 0.5mm square and the tip is 0.1mm square.Find the pressure of head and tip
• Why do bicycle begin to slow down when we stop pedaling?
• acceleration
• How to find force
• How to find force

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