Ans
14. A particle is moving in a straight line with initial velocity u and uniform acceleration f. If the sum of the distance covered in tth and (t+1)th second is 100 m, then its velocity after t sec in m/s is
(A) 20 (B) 30
(C) 50 (D) 80
Kindly refer the similar link below.
https://www.meritnation.com/ask-answer/question/a-particle-is-moving-in-a-straight-line-with-initial-velo/physics/2875458
https://www.meritnation.com/ask-answer/question/a-particle-is-moving-in-a-straight-line-with-initial-velo/physics/2875458