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Please answer 9&10
-10 C. Does this object ever change direction? If so, nt what time or times? 9. (4 pts) An airplane needs to reach a forward velocity of 203.0 km/h to take off. On a 2000-m runway, what is the minimum uniform acceleration (in m/s?) necessary for the plane to take light if it starts from rest? vertically upward over waterfalls as high as 3.6 m. a. With what minimum speed must a salmon launch itself into the air to clear a 3.6 m waterfall? b. How long does it take the salmon to clear the 3.6 m waterfall?
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