Question

How does a karate player breaking a slab of ice with a single blow?

Answer 1

The Karate Player uses his full body strength to break it, when he takes back his hand to hit the slab of ice the momentum acts and with full force the slab ice broke with a single blow-

Answer 2

┏─━─━─━─━∞◆∞━─━─━─━─┓ ✭✮ӇЄƦЄ ƖƧ ƳƠƲƦ ƛƝƧƜЄƦ✮✭ ┗─━─━─━─━∞◆∞━─━─━─━─┛

By doing this, He or She increase the rate of change of momentum.

In doing so, the entire momentum of the hand is reduced to zero in a very short interval time.

So, according to the Second Law 0f Motion,

the resultant force delivered on the slab of Ice will be large enough to break it in a single blow.

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