Question

5. A stone falls freely under gravity. It covers distances
h, h, and h, in the first 5 seconds, the next
5 seconds and the next 5 seconds respectively. The
relation between h,, h, and h, is [NEET-2013]
(1) he has the
(2) n = 3h, and h = 3h,
(3) n = n = 2
(4) h, = 2h, = 3h​

Answer 1

h = 1/2 gt² h₁ = 1/2 g(5)² = 125

h₁ + h₂ = 1/2 g (10)² = 500

h = 375

h₁ + h₂ + h₃ = 1/2 g (15)² = 1125

h₃ = 625 h₂ = 3h₁, h₃ = 5h₁

or h₁ = h₂ / 3 = h₃ / 5