Show Menu
Cheatography
  1. Home >
  2. Education >

Tahsili Physics (Mechanics) Cheat Sheet (DRAFT) by

Tahsili Physics 2023, Mechanics

This is a draft cheat sheet. It is a work in progress and is not finished yet.

Formulas of Gravit­ational Accele­ration

vf = vi + gt
df = di + vit + 1/2 gt2
vf2 = vi 2 + 2g(df - di)
g is negative when an object is thrown up, and positive when it falls down

Formulas of Constant Accele­ration

vf = vi + at
df = di + vit + 1/2 at2
vf2 = vi 2 + 2a(df - di)
 

Newton's Laws of Motiona

First Law
an object at rest stays at rest, and an object in motion stays in motion unless an unbalanced force is applied
Second Law
F = ma
Third Law
The law of action and reaction

Friction Force

normal force
a contact force in which a surface vertically affects an object
friction force
a force that prevents an object's motion
types of friction
static and kinetic
formula of friction force (static)
f = μs x mg
formula of friction force (kinetic)
f = μk x mg
formula of Normal Force
F = mg (vertical) or the object's weight (horiz­ontal)
μs > μk
friction depends on mass, not surface area
weight is measured in N, mass is measured in Kg