1
Q
(Dynamics) when an object is accelerating in a direction:
A
Fnet = ma
2
Q
When an object is not accelerating in a direction:
A
Fnet = 0
3
Q
For projectile motion:
assumptions
A
the earth is flat, air resistance is negligible
4
Q
For escape velocity:
A
- no resistance
- perfectly spherical planet (radius is constant)
- Isolated system (no other planets interfering)
- Speed is 0 at escape velocity (r = infinity)
