I am currently a senior in high school taking AP Physics 1 (I wanted to take Physics C, but there were not enough people interested). I hope to use this forum to help with homework and contribute to the community.
Homework Statement
A UPS delivery man pushes a 5kg box (A) along a smooth surface where the coefficient of kinetic friction, [µ][/k], is equal to 0.20. The box slides for 1.5m before colliding with a 3kg box (B). The boxes then move together as one unit on a rough surface with [µ][/k]= 0.9 for...