A body covers a distance of 20 m in 7th sec and 24 m in the 9th sec. How much shall it cover in 15s ?

“A body covers a distance of 20 m in 7th s and 24 m in the 9th s. How much shall it cover in 15s ?”  - Raghav posted this question.   Answer: From the eqn for displacement in the nth second, For the displacement in the 7th sec, we get, …………………….. (1) For the displacement in [...]