Projectile motion Flashcards
(8 cards)
1
Q
Why is there no horizontal component of acceleration for projectile motion
A
- Only force experienced by object is its weight
- Acceleration experienced by object always 9.81ms^2 vertically downwards
2
Q
t(u) is time obj going up
t(d) is time obj going down
Explain relationship btwn t(u) and t(d) with air resistance
A
- t(d) > t(u)
- Net acceleration when obj moving down is smaller than net acceleration when obj moving up
2
Q
What is vertical components of velocity at max height
A
0
2
Q
Explain object falling from rest with air resistance
A
- 0 initial velocity, 0 initial air resistance, acceleration is g
- As object falls, velocity increases, air resistance increases
- Net force downwards decreases
- Decreasing acceleration
- Terminal velocity achieved when net force = 0
- Object continues falling with constant terminal velocity
3
Q
A
4
Q
A
5
Q
A
6
Q
A
