vault backup: 2025-09-03 13:57:38
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@ -42,3 +42,13 @@ Kinematics problems have a *start* and an *end* of the motion.
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## Examples
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## Examples
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> Sally aggressively drives her Alfa Romeo from rest to 50 m/s in 6s. What is her acceleration?
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> Sally aggressively drives her Alfa Romeo from rest to 50 m/s in 6s. What is her acceleration?
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1. Start:
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- $v_0 = 0 m/s$
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- $t_0 = 0s$
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- $x_0 = 0m$
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2. Final:
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- $v = 50 m/s$
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- $t = 6s$
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- $x = ?$
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3. Using the equation $v = v_0 + at \to a = \frac{(v - v_0)}{t}$, $a$ = $(50 m/s - 0 m/s)/ 6s = 8.3m/s^2$
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4. Assess: do the units make sense? Is the answer reasonable?
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