CH4-Projectile motion Flashcards
1
Q
position vector r in three dimensions
A
r = xi + yj + zk
2
Q
displacement vector
A
r2-r1 = (x2-x1)i + (y2-y1)j + (z2-z1)k
3
Q
average velocity
A
change in vector r/change in time
4
Q
instantaneous velocity
A
dx/dt i + dy/dt j + dz/dt z
5
Q
instantaneous acceleration
A
second derivative i + j + z
6
Q
equation of motion for a constant acceleration
A
r - ri = vi(vector)t + 1/2a(vector)t^2
7
Q
equation of motion for a constant acceleration (2nd dimension)
A
v(vector) = vi(vector) + a(vector)t
8
Q
A
