Question
Thu July 26, 2012 By: Syohan
 

A hammer waiting 2.5kg moving with a speed 1m/s strikes the head of the nail driving it 10cm into the wall.the acceleration during impact and the inpulse imparted to wall will be respected

Expert Reply
Thu July 26, 2012
Impullse is the momentum change: initial momentum of hammer (because final velocity of hammer is zero) = 2.5*1 = 2.5 kgm/s
 
using 3rd equation of motion:
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