forces p2 Flashcards
1
Q
newtons 1st law
A
an object remains in the same state of motion unless a resultant force acts on it
2
Q
newtons 2nd law
A
F= m a
3
Q
newtons 3rd law
A
whenever 2 objects interact, they exert equal and opposite forces on each other
4
Q
resultant force
A
when 2 or more forces are acting on an object, they can be replace by a single force, which has the same effect as both combined
5
Q
conservation of momentum
A
in a closed system, the total m before an event is equal to the total m after the event
6
Q
scaler
A
magnitude
7
Q
vector
A
magnitude and direction (all forces)
8
Q
calculate resultant force
A
subtract
