Force
From Conservapedia
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Force is defined as rate of change of momentum of a body . F= dp/dt , p= mv , F= ma where F stands for total vector sum of all forces , m for mass of the object, a for its acceleration expressed as a vector, p stands for momentum vector and v for velocity vector. It was stated first by Sir Isaac Newton.
When the velocity of the object approaches light speed it's effective mass changes. Then it is expressed as
chttp://upload.wikimedia.org/math/9/7/3/9735e356575f486ff6bdbb9cebd7f1d8.png
The types of forces are
1. Electro-magnetic force 2. gravitational Force 3. Strong force 4. weak force
