Question

a ball is dropped from a particular height then the ratio of distance covered by ball in 5th and 3rd second is

5:9

5:3

9:5

3:5​

Answer 1

Answer:

Distance covered in nth second,

∝n

2

−(n−1)

2

∝n

2

−[n

2

+1−2n]

∝2n−1

n=2→2(2)−1=3

n=3→2(3)−1=5

n=5→2(5)−1=9

3:5:9l