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Statement of a problem № 10782

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The velocity of a train is 80.0 km/h, due west. One and a half hours later its velocity is 65.0 km/h, due west. What is the train s average acceleration? (a) 10.0 km/h2, due west (b) 43.3 km/h2, due west (c) 10.0 km/h2, due east (d) 43.3 km/h2, due east (e) 53.3 km/h2, due east?




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