inclined projectiles Flashcards
1
Q
velocity upwards
A
(ucosp-gsinit)i +(usinp-gcosit)j
2
Q
velocity downwards
A
make sign in first bracket plus
3
Q
displacement upwards
A
(ucospt-gsinit squared)i + (usinpt-.5gcosit squared)j
4
Q
displacement downwards
A
first bracket minus sign
5
Q
Ax
A
-gsini
6
Q
Ay
A
-gcosi
7
Q
range
A
Sc when Sy=O
8
Q
Vx
A
ucosp-gsinit
9
Q
Vy
A
sinp-gcosit
10
Q
Sx
A
ucospt-.5gsinit squared
11
Q
Sy
A
usinpt-.5gcosit squared
12
Q
landing angle
A
-Vy
——
Vx
when Sy=0
13
Q
if a particle lands perpendicularly to the plane
A
Vx=0 when Sy=0
14
Q
if a particle lands horizontally
A
tani= -Vy
——
Vx
when Sy=0
15
Q
when a ball bounces on a smooth plane along the i direction
A
it’s velocity in the i direction remains the same but the j will be multiplied by -e
