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A car travels a certain distance with a speed of 40m/sand returns with a speed u. The average speed u. Theaverage speed for the whole tourney is 45 ns . whatis the value of u?(a) 60ms(b) 70ms1(d) 80ms1ins(c)51.4 msnis |
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Answer» hit like if you find it useful how t1= D/u0 |
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