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The elevator starts from rest at the first floor of the building. It can accelerate at 5 f...

The elevator starts from rest at the first floor of the building. It can accelerate at 5 ft/s2 and then decelerate at 2 ft/s2. Determine the shortest time it takes to reach a floor 40 ft above the ground. The elevator starts from rest and then stops. Draw the a-t, v-t, and s-t graphs for the motion.

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Solutions For Problems in Chapter 12
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