Question

A stone falls from rest. The distance covered by it in the last second of its motion is equal to the distance covered
in the first three seconds. What is the height from which the stone was dropped? [Take g = 10 m/s?]​

Answer 1

Answer:

125m

Explanation:

calculate distance travelled for 3 seconds and then calculate time of flight by 4th equation of motion using S3 calculated above. then use this time of flight for calculating total height of tower by S= ut+ 1/2at^2