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Forces
Forces
Newton's First Law
Object does not move if net force is zero
My ball will not move if net force is zero
Rocket does not move if no gravity, friction, etc.
Net Force= Sum of all outside forces
Forces cause motion
Newton's Second Law
Can be used to solve for horizontal and vertical acceleration
A = F/M Acceleration is equal to force/mass
a=
A ball moving at 10 newtons has a mass of 20 kg, the acceleration is 1/2 m/s squared
Newton's Third Law
Every action has equal, opposite reaction
Action Force and Reaction Force
:
Action is the first force
Acting on different objects
Reaction finishes with equal force
When you fire a gun, bullet goes forward, gun kicks back
Energy
Energy Theorem
Potential Energy
Energy possessed due to configuration or position.
Kinetic Energy
Energy from being in motion
Mechanical Energy
Sum of Potential and Kinetic Energy
Energy in motion
Capacity to do work
!
Work
Work Formula
Force displacing an object
