easyphysics.static_friction

Module Contents

Functions

static_friction_ground(mu, m[, g])	calculating the friction force for static object. The formula is fr = mu * N, where
plot_frict(m, mu, g)	Ploting the trend line for firction force in different masses

easyphysics.static_friction.static_friction_ground(mu, m, g=9.8)

calculating the friction force for static object. The formula is fr = mu * N, where the mu is the coefficient of friction which incorporating the characteristics of the surface. For example, if you want to calculate the friction when you put your phone on a table, then the coefficient of friction is depending on the matirial of the table. N is the normal force which means the perpendicular force of the surface which object touching on. In our case, it would be m*g since it is on the ground. fr = mu * m * g.

Parameters:

• mu (numeric) – coefficient of friction

• m (numeric) – mass (kg)

• g (numeric, optimal) – gravity on Earth

Returns:

force – static friction force

Return type:

numeric

Examples

>>> static_friction_ground(0.2, 2)
3.92
>>> static_traction_ground(0.2, 2, g = 10)
4

easyphysics.static_friction.plot_frict(m, mu, g)

Ploting the trend line for firction force in different masses

parameter

munumeric

coefficient of friction

m: numeric

mass (kg)

g: numeric, optimal

gravity on Earth

rtype:

plot

Examples

>>> static_friction_ground(0.2, 2)
line plot
>>> static_traction_ground(0.2, 2, g = 10)
line plot