Asked by fouad
The distances travelled in a successive seconds are in AP. It travels 1.5 cm in the first second and 1.9 cm in the next second.How long did it take to cover the total distance ?
Answers
Answered by
Steve
depends on the distance, no?
But, you know that after n seconds, the distance traveled will be
Sn = n/2 (2*1.5+0.4(n-1)) cm
But, you know that after n seconds, the distance traveled will be
Sn = n/2 (2*1.5+0.4(n-1)) cm
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