Recent content by l607309608126

Thank you! I guess the book is wrong.

So it's just 9.8*20 - 0.15*9.8*40 = 137 N Then what did I find?

Homework Statement Two 20 kg masses rest on a horizontal table. The bottom mass is connected to a string of negligible mass, which passes over a frictionless pulley with negligible mass and supports a third 20 kg mass that hangs over the side of the table. The coefficient of kinetic friction...