1. Two students are kayaking on the Saint John River. Initially, they are floating directly beside...

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Physics

1. Two students are kayaking on the Saint John River. Initially,they are floating directly beside each other chatting and movingwith the river current at 1.50 m/s downstream. Student A pushesaway from Student B and sees Student B floating away from them at1.00 m/s in the upstream direction. The combined inertia of StudentA and their kayak is 100 kg and the combined inertia of Student Band their kayak is 120 kg. Assume that there is no friction betweenthe kayaks and the water. a. Relative to the river flow, determinethe velocities of the two students once they start moving away fromeach other (after the push). (Define your system to justify anyconservation relations you might use, provide appropriate diagramsto describe the interaction and explain your solution approach.) b.What are the velocities of the two students once they are movingaway from each other as seen from the perspective of someone on theshore of the river? c. What source energy does Student A expend inpushing the two kayaks apart?

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4.5 Ratings (975 Votes)

let downstream direction be positive and upstream direction be negative initial velocity of each student student A v115 ms student B v215 ms after the push let velocity of student A is va and See Answer

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