A - foundations of classical mechanics

PX155 - A1 - newton's first law
PX155 - A2 - newton's second law
PX155 - A3 - newton's third law
PX155 - A4 - scalars and vectors
PX155 - A5 - static and dynamic friction
PX155 - A6 - block on a slope
PX155 - A7 - gravitational force