All the formulas in the physics, chemistry and mathematics book of grade one of senior high school should be complete! Thank you~

All the formulas in the physics, chemistry and mathematics book of grade one of senior high school should be complete! Thank you~

Force 1. Gravity: g = Mg 2. Friction: (1) sliding friction: F = μ FN, that is, sliding friction is proportional to pressure. (2) static friction: ① the calculation of general static friction should use Newton's second law, and remember not to use f = μ FN indiscriminately; ② the calculation of maximum static friction should be based on Newton's second law