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CraZyFanAtiC
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Hey, guys just joined PF, was hoping you could help with this questions and in turn maybe i can return the favour (with the little physics knowledge I have).
In a acceleration test, 2 markers are placed 0.30 km apart. The first car passed the first marked with a velocity of 5.0 m/s [E], the second passed the marker with a velocity of 33.0 m/s [E]. Calculate the Cars average acceleration.
v1 = 5.0 m/s [E]
v2 = 33 m/s [E]
Delta D = 0.30 km
Aav = ?
The kinematics that i am using is Vf² = Vi² + 2aav(d)
The problem i am having is rewriting the equation.
I need to rewrite this for aav.
Vf² - Vi² = Vi² + 2aav(d)
vf² - vi²/2(d) = aav
This is what i have so far, but it must be wrong i just don't see how. When i plug in the numbers..
1089 - 25/2(0.3) = aav
1064/0.6 = aav
aav = 1773.3
this can't be right can anyone help me?
Homework Statement
In a acceleration test, 2 markers are placed 0.30 km apart. The first car passed the first marked with a velocity of 5.0 m/s [E], the second passed the marker with a velocity of 33.0 m/s [E]. Calculate the Cars average acceleration.
Homework Equations
v1 = 5.0 m/s [E]
v2 = 33 m/s [E]
Delta D = 0.30 km
Aav = ?
The kinematics that i am using is Vf² = Vi² + 2aav(d)
The Attempt at a Solution
The problem i am having is rewriting the equation.
I need to rewrite this for aav.
Vf² - Vi² = Vi² + 2aav(d)
vf² - vi²/2(d) = aav
This is what i have so far, but it must be wrong i just don't see how. When i plug in the numbers..
1089 - 25/2(0.3) = aav
1064/0.6 = aav
aav = 1773.3
this can't be right can anyone help me?