A book of mass m1=1.8 kg is stacked on another book of mass m2=2.3kg, which rests of a frictionless - mag-download sa 4shared. Ang A book of mass m1=1.8 kg is stacked on another book of mass m2=2.3kg, which rests of a frictionless ay naka-host sa libreng serbisyo ng pagbabahagi ng file na 4shared.