List of formulas related to Forces
Attractive Forces
m1,m2: mass of two objects; r: distance between two objects; G: gravitational constant
Gravitational Force
M: Earth mass, m: mass of object, R: Earth radius, h: object’s height
Gravitational Acceleration
At a height h above the normal surface of the earth
Near the sea level
Force Of Gravity
Force of gravity on earth, a special case of Gravitational force
Newton's First Law
F: forces acting on the object , v: velocity of the object, a: acceleration of the object
Newton's Second Law
m: object’s mass(kg)
Newton's Third Law
Linear Elasticity-Hooke's Law
K: spring constant (n/m), x: displacement(m)
A Mass suspended by a spring
Force Of friction
µ: coefficient of friction, N: normal force
Fms = µN
= µPcosα
= µmgcosα