1.3 Dynamics Flashcards
1
Q
What is newton’s 3rd law?
A
If a body A exerts a force on a body B, then B exerts an equal and opposite force on A of the same type
2
Q
What is the newton’s 3rd law pair of a mug on a table?
A
Gravitational
The force of gravity the Earth exerts on the mug is equal and opposite to the force of gravity the mug exerts on the Earth
Electrostatic
The electrostatic repletion force the atoms of the Earth exert on the mug is equal and opposite to the electrostatic repletion force the atoms of the mug exert on the atoms of the Earth
3
Q
What is newton’s second law?
A
The rate of change of momentum of an object is directly proportional to the resultant force active on it and takes place in the direction of that force.
