ICSE Class 9: Newton's Third Law of Motion Videos | Force and Laws of Motion

• state the laws of conservation
• 12> A block of mass 1.5 kg is hanging from rigid support by a string. What is the force exerted by the (i) block on the string  (ii) string on the block (g = 10 m/s^2)    
• Hammering a nail. What will be the reaction force of nail on hammer?
• If action is equal to the reaction explain how a horse can pull a cart?   
•  A motorbike running at 5m/s picks up a velocity of 30 m/s in 5 s.Calculate the acceleration  and  distance travelled during application of brakes ?
• what is the mathematical expression of newtons 3rd law of motion  

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