A stone falls freely from rest the total distance covered by it in last second of its motion - Physics - Motion In A Straight Line

Question

A stone falls freely from rest & the total distance covered
by it in last second of its motion equals the distance covered by
it in the first 3second of its motion How long the stone will
remain in the air?please show me easy processes

Bapan Pathak · Accepted Answer

Hi Nikhil,
The distance travelled by the stone in the nth
second is given by,
<img width="562" height="228" src=
"https://s3mn%20mnimgs%20com/img/shared/userimages/mn_images/image/dist(2)%20png"
alt="">

5th second is the last second
So, the stone will remain in air for 5 seconds
Hope this helps,
Keep posting and have a nice day!

A stone falls freely from rest & the total distance covered by it in last second of its motion equals the distance covered by it in the first 3second of its motion.How long the stone will remain in the air?please show me easy processes.