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AnsweredJohn drove South 120 km at 60 km/h and then East 150 km at 50 km/h. Determinea) the average speed for the whole journey?b) the magnitude of the average velocity for the whole journey?2 |
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Answer» Explanation: AVERAGE SPEED= TOTAL distance TAKEN/ total time =120+50/2+3 =170/5 =34km/h average VELOCITY= initial+final velocity/2 =60+50/2 =110/2 =55km/h |
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