5.3 - Newton's Second Law of Motion Applied to Fixed Masses Flashcards
1
Q
What equation represents a general version of Newton’s second law?
A
ΔF = Δmv/Δt
2
Q
What is this equation the same as?
A
The equation for impulse rearranged slightly
3
Q
What is the proper equation normally simplified to?
A
F = ma
4
Q
Why can this be done?
A
Because in most scenarios, the mass is fixed, and Δv/Δt is equal to the acceleration
5
Q
What is a key link between the force exerted and the acceleration?
A
Their directions are the same
6
Q
Why?
A
Because they are both vectors, and mass is only a scalar
7
Q
What does Newton’s second law state?
A
That the acceleration of a body of constant mass is proportional to the force exerted on it
8
Q
When two or more objects interact, what do they form?
A
A system
