Question

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

Answer 1

Answer:

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Answer 2

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