Unit 5 - Projectile motion

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Last updated 7:16 AM on 9/10/26
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14 Terms

1
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what are some examples of projectile motion?

  • angry birds

  • javelin

  • tennis, football, soccer, basketball


2
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when does an object count as a projectile?

when the object is in the air and the person is not interacting with them anymore

  • follows an arc pattern in the air


3
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what are the two forces that influence a projectile?

gravity and air resistance

4
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what causes a force? (formula for force)

mass and acceleration

F = mass x acceleration

5
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does a force cause an acceleration? why?

yes

forces causes acceleration and will change the object’s velocity and the velocity will change the object’s position

6
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what is the acceleration for gravity? positive or negative and why?

-9.8 m/s2

negative because it is pulling down

7
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does force influence velocity?

not directly

forces influence acceleration which influences velocity and position

<p>not directly</p><p>forces influence acceleration which influences velocity and position </p>
8
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does gravity act in the horizontal or vertical direction?

vertical

9
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does air resistance act in the horizontal or vertical direction?

horizontal direction

10
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<p>v<sub>0</sub> =</p><p>a<sub>0</sub> = </p>

v0 =

a0 =

v0 = 0 m/s

a0 = -9.8 m/s2

<p>v<sub>0</sub> = 0 m/s</p><p>a<sub>0</sub> = -9.8 m/s<sup>2</sup></p>
11
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<p>v<sub>1</sub> =</p><p>a<sub>1</sub> = </p>

v1 =

a1 =

v1 = -9.8 m/s

a1 = -9.8 m/s2

<p>v<sub>1</sub> = -9.8 m/s</p><p>a<sub>1</sub> = -9.8 m/s<sup>2</sup></p>
12
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<p>v<sub>2</sub> =</p><p>a<sub>2</sub> = </p>

v2 =

a2 =

v2 = -19.6 m/s

a2 = -9.8 m/s2

<p>v<sub>2</sub> = -19.6 m/s</p><p>a<sub>2</sub> = -9.8 m/s<sup>2</sup></p>
13
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<p>x<sub>2.02</sub> = 0m</p><p>v<sub>2.02</sub> = </p><p>a<sub>2.02</sub> = </p>

x2.02 = 0m

v2.02 =

a2.02 =

x2.02 = 0m

v2.02 = 0 m/s

a2.02 = 980 m/s2

<p>x<sub>2.02</sub> = 0m</p><p>v<sub>2.02</sub> = 0 m/s</p><p>a<sub>2.02</sub> = 980 m/s<sup>2</sup></p>
14
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what causes a parabolic trajectory?

horizontal velocity (straight line trajectory) and vertical velocity (gravity) acting on the object

<p>horizontal velocity (straight line trajectory) and vertical velocity (gravity) acting on the object</p>