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A body starts from rest, what is the ratio of the distance travelled by the body during the 4th and 3rd second? (a) 7/5 (b) 5/7 (c) 7/3 (d) 3/7



A body starts from rest, what is the ratio of the distance travelled by the body during the 4th and 3rd second?   


        (a)    7/5


(b)     5/7


(c)    7/3


(d)    3/7


Grade:10

1 Answers

Amit Saxena
35 Points
7 years ago

(a)
    D_4/D_3 =   (0+a/2  (2×4-1))/(0+a/2  (2×3-1) )=7/5

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