Question

A stone falls freely under gravity. It covers distances h₁, h₂
and h₃ in the first 5 seconds, the next 5 seconds and the
next 5 seconds respectively. The relation between h₁, h₂
and h₃ is [2013]
(a) h₁ = h₂/3 = h₃/5
(b) h₂ = 3h₁ and h₃ = 3h₂
(c) h₁ = h₂ = h₃ (d) h₁ = 2h₂ = 3h₃

Answer 1

Answer:

OPTION A

Explanation:

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

Answer 2

Answer:

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