Solving Physics

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Solving Physics Problems
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Step One

• Read problem Carefully
• What distance does a
• car traveling 30m/s cover in 5.5 seconds?

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Step Two

• List Variables in problem including unknown
• What distance does a
• car traveling 30m/s cover in 5.5 seconds?
• Vi 30 m /s Vf 30 m/s
• t 5.5 s d ?

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Step Three

• Choose from possible equations you know
• What distance does a
• car traveling 30m/s cover in 5.5 seconds?
• V d / t a vf -vi / t
• d vi t 1/2 at2 Vf2 vi2 2ad
• d vi t 1/2 gt2 v gt

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StepFour

• Plug into the equations
• What distance does a
• car traveling 30m/s cover in 5.5 seconds?
• V d / t a vf -vi / t
• d vi t 1/2 at2 Vf2 vi2 2ad
• d vi t 1/2 gt2 v gt

V d/ t 30 m/s d / 5.5
secs d 165 m
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Problem 2

• Solve for the acceleration of each
• 0 -30 m/s 30m/s -60m/s
• Porsche 2.3 s 3.2 s
• Hundai XL 10.2 s 1.5s

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StepFour

• Plug into the equations
• What distance does a
• car traveling 30m/s cover in 5.5 seconds?
• V d / t a vf -vi / t
• d vi t 1/2 at2 Vf2 vi2 2ad
• d vi t 1/2 gt2 v gt

Vf30m/s avf-vi /t Vi 0m/s so 30m/s- 0 13
m/s2 T 2.3 2.3s
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Big 5 motion equations
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