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1a. An unidentified flying object (UFO) is observed to travel a total distance of 46000 m,...

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Physics

1a. An unidentified flying object (UFO) is observed to travel atotal distance of 46000 m, starting and ending at rest, over aduration of 1.57 s. Assuming the UFO accelerated at a constant rateto the midpoint of its journey and then decelerated at a constantrate the rest of the way, what was the magnitude of itsacceleration? Express your answer in g s , where 1 g = 9.81m/s^2.

b. A Ford passes a Toyota on the road (both vehicles aretraveling in the same direction). The Ford moves at a constantspeed of 45.3 m/s. Just as the Ford passes it, the Toyota istraveling at 16.0 m/s. As soon as the Ford passes the Toyota, theToyota begins to accelerate forward at a constant rate. Meanwhilethe Ford just keeps going at a steady [] m/s to the east. TheToyota catches up to the Ford a distance of 89.0 m ahead of wherethe Ford first passed it. What was the magnitude of the Toyota sacceleration?

c. Driving down the road at a speed of 33.7 m/s, you suddenlynotice a fallen tree blocking the road a distance of 85.1 m aheadof you. You step on the brake pedal and decelerate at a constantrate. What must the magnitude of your acceleration be so that youwill come to a stop 5.4 m in front of the tree?

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