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anonymous
 one year ago
Alexander's hobby is dirt biking. On one occasion last weekend, he accelerated from rest to 17.8 m/s/s in 1.56 seconds. He then maintained this speed for 9.47 seconds. Seeing a coyote cross the trail ahead of him, he abruptly stops in 2.79 seconds. Determine Alexander's average speed for this motion.
anonymous
 one year ago
Alexander's hobby is dirt biking. On one occasion last weekend, he accelerated from rest to 17.8 m/s/s in 1.56 seconds. He then maintained this speed for 9.47 seconds. Seeing a coyote cross the trail ahead of him, he abruptly stops in 2.79 seconds. Determine Alexander's average speed for this motion.

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IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.1dw:1437694184862:dw if the acceleration/deceleration is constant, you can draw a nice diagram like this and solve it in all manner of ways, including geometrically.
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