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1) A bullet of mass 0.1 kg moving horizontally with avelocity of 20 m/s strikes a target and brought torest in 0.1 s. Find the impulse and average force of(Ans: 2 N-s, 20N)impact.

Answer»

:m=0.1kgvi=20m/svf=0m/st=0.1sI=?Fav=?solution:Fav=ma=m(deltav/delta t)=0.1(20/0.1)* F=20Nnowimpulse =F×t=20×0.1=2Ns



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