1.

A body of mass 4 kg is acted on by a force which vanes as shown in the graph betow. The momenrumacquired is12.r*FIN)10s)(C) 70 N-sID) 210 N-S(A) 280 N-9(B) 140 N-sha hlonk annlank is uand grpund is smooth. The value of uis

Answer»

momentum acquired is area under the graph = 10*5 + 1/2*10*4 = 50+20 = 70N-s.

option C



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