Projectile Motion and Vectors Flashcards
(8 cards)
1
Q
How do you do vector addition?
A
Use a vector triangle joined head-to-tail
2
Q
If three vectors make up a complete triangle:
A
no resultant vector
3
Q
Equation for component of weight down a slope:
A
Wsin• = mgsin•
4
Q
F=ma so a=
A
a = gsin•
5
Q
To subtract one vector from another:
A
reverse the direction of the vector being subtracted then add (head-to-tail)
6
Q
How to calculate the time of flight:
A
vertical velocity and
v = u + at
and double t
7
Q
How to calculate horizontal distance:
A
use horizontal velocity and time of flight
d = v x t
8
Q
How to calculate maximum height:
A
use vertical velocity and
v2 = u2 + 2as
