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dem82 [27]
3 years ago
11

an automobile engineer found that the impact of a truck colliding at 16 km/h with a concrete pillar caused the bumper to indent

only 6.4 cm. The truck stopped. Determine the acceleration.
Physics
1 answer:
Zolol [24]3 years ago
8 0
<span>To find the acceleration we are given two facts to begin. The impact at 16 km/h and the dent of 6.4 cm, or 0.064 meters. In solving the problem uniform acceleration is assumed, which would mean the avg speed during the impact was 8 km/hr by taking 16/2. We know distance = rate*time (d=r*t) . So t = d / r, so 0.64/8 = 0.008hr for t. Now we can solve for acceleration by taking a = 16 / 0.008 = 2000 km/hr.</span>
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