1. The problem statement, all variables and given/known data With what speed should a body be thrown upward so the distance traversed in the 5th second and 6th second are equal? 2. Relevant equations No idea since I fail to comprehend the statement of the problem. 3. The attempt at a solution This doesn't make sense to me, the distance travelled during the fifth second should be more than the sixth second as the initial velocity in the fifth second is more. During the sixth second , final velocity of fifth second will be the initial velocity of sixth second and it should be less than the initial velocity of the fifth second , so displacement should be different.