How fast will the car be traveling at that instant?

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The discussion focuses on a physics problem involving an automobile accelerating from rest and a truck moving at a constant speed. The key points include determining how far the automobile will travel before overtaking the truck and calculating the car's speed at that moment. To solve the problem, the distances traveled by both vehicles must be equal at the same time, leading to the equations for distance covered by the accelerating car and the constant-speed truck. The initial confusion lies in how to utilize the truck's speed to set up the equations correctly. The solution requires finding the time it takes for the automobile to catch up to the truck.
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At the instant the traffic light turns green, an automobile starts with a constant acceleration a of 2.3 m/s2. At the same instant a truck, traveling with a constant speed of 9.6 m/s, overtakes and passes the automobile.
(a) How far beyond the traffic signal will the automobile overtake the truck?

(b) How fast will the car be traveling at that instant?

Not exactly sure how to set the problem up. Like exactly how does the truck's speed help find the answer? I know I need to find the time it took to figure out the rest. I'm just missing something in the the question that will help set up the problem.
 
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You're looking for two equal distances where the time is also the same:

scar = .5 * at2 = struck = vt
 
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