A book of mass m1=1.8 kg is stacked on another book of mass m2=2.3kg, which rests of a frictionless - download na 4shared. A book of mass m1=1.8 kg is stacked on another book of mass m2=2.3kg, which rests of a frictionless está hospedado no serviço 4shared grátis de compartilhamento de arquivos.