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yy amF
yg amF
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kgNay 8.9
One Dimensional Projectile Motion Post-Activity
kgN
kgs
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kgm
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Units:
28.98.9s
mkg
Ngay
Projectile - an object for which the only force acting upon it is gravity. The force of air resistance is negligibly small or nonexistent for a projectile.
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Kinematic Equations
28.98.9s
mkg
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28.9
smg
ay
x
onaccelerati Fall Free the withreplaced
are onsaccelerati all that and , positions vertical
withreplaced are positions horizontal all that Notice
Uniform Acceleration!
One Dimensional Projectile Motion Post-Activity
Projectile - an object for which the only force acting upon it is gravity. The force of air resistance is negligibly small or nonexistent for a projectile.
A minivan falls off of a 221 m tall building.
a. What is its velocity as it hits the ground?
What do you need to know?
?yvWhat are you given?
myy o 221
0oyv
28.9 smg
ooyy yygvv 222
smvy 66
oy yygv 22
ms
mvy 2218.92 2
oy yygv 2 oy yygv 2
One Dimensional Projectile Motion Example
A minivan falls off of a 221 m tall building.
b. How long did it stay in the air?
What do you need to know?
?tWhat are you given?
myy o 221
0oyv
28.9 smg
2
2
1tgtvyy oyo
2
2
1tgyy o
22 tgyy o
22t
g
yy o
One Dimensional Projectile Motion Example
A minivan falls off of a 221 m tall building.
b. How long did it stay in the air?
g
yyt o
2
2 8.9
2212
smm
t
st 7.6
?tmyy o 221
0oyv
28.9 smg
One Dimensional Projectile Motion Example