the initial velocity of a body moving along a straight line is 7 metres per second in the uniform acceleration of 14 metre per second into dance cover by the body in the fifth second of its motion is
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velocity (u) = 7m/sec
acceleration (a) = 14m/sec²
second (n) = 5
The distance covered by the body in nth sec is given by
Sn = u + a/2 (2n-1)
S5 = 7 + 14/2 (2×5-1)
S5 = 70m
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