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A 1 kg hammer with a velocity of 50 m s^...

A 1 kg hammer with a velocity of `50 m s^(1)` strikes a 100 g iron nail driving it into a block of wood. If half of the energy of the hammer goes into heating the nail, find the rise in its temperature, given `C_("iron")=480 J kg^(-1)K^(-1)`

Text Solution

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`KE=(1//2)mv^(2)=1250J`
(1/2) of this `625 J=Q= (m xxC xx DeltaT)_("iron")`
`:. DeltaT=(625)/(mxxC)=13^(@)C`
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