Key Equations

Sections
Key Equations

Key Equations

Newton's first law of motion F net = 0 F net = 0 or ΣF=0 ΣF=0
Newton’s second law of motion F net =ma F net =ma or ΣF=ma ΣF=ma
Newton’s second law of motion to solve acceleration a= F net m   or  a= ΣF m a= F net m   or  a= ΣF m
Newton’s second law of motion to solve weight W=mg W=mg
normal force for a nonaccelerating horizontal surface N=mg N=mg
tension for an object at rest T=mg T=mg