1.

A 40 kg shellis moving with a velocity of 72 km/h. It explodes into two pieces, of which one plece of mass5 kg stops immediately. Calculate the velocity of the other piece

Answer»

m1v1 + m2v2 = mv5*0 + 35*v2 = 40*72v2 = 40*72/35 = 82.285 km/h.



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