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CBSE Class 9 Answered

Why we don't hurt when we jump on muddy floor compared to hard floor 
Asked by arti.iuac | 06 Mar, 2019, 11:13: AM
answered-by-expert Expert Answer
As we know from newton second law of motion that force is directly proportional to rate of change of momentum, if time taken to change momentum is large the force will be less and vice versa.  
When we jump in mud the time take to change the velocity zero is more so the reaction force applied by surface is less.
But when we jump on hard surface velocity suddenly becomes zero so time taken here is less so the force will be large.
Answered by Ankit K | 06 Mar, 2019, 11:34: AM

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