1.

calculate the force required to move an object of having mass 5kg from rest to velocity of 8m/s in 2 minutes.

Answer»

F=ma=5*8/120=40/120=0.33N

Given:mass=5kg,u=0,v=8m/s,t=2min=120sAs F=maBy first equation of motion v=u+at8=0+a.120(. means multi)8/120=a As F=maF=2.8/120



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