Question

calculate the ratio between the distance covered by the body in first three seconds to the distance covered in third second if initially it is at rest​

Answer 1

Answer:

Distance travelled in three seconds = 1/2 at^2 = 9/2 a

Distance travelled in 3rd second = 9/2 a - 4/2 a

                                                       = 5/2 a

Ratio = 9 : 5

I hope it helps .