Question

A body dropped from a height of 5m, reaches the ground in 1s. If it takes 2s to reach the ground, find the height from which it is dropped.​

Answer 1

Answer:

10 m

Explanation:

as time is doubled

hight will be doubled

Answer 2

Answer:

s₁ = 5m

t₁ = 1 sec.

u₁ = 0 m/sec

a₁ = 9.8 m/sec²

u₂ = 0 m/sec

a₂ = 9.8 m/sec²

t₂ = 2 sec

s₂ = ?

s₂ = u₂ x t₂ + 1/2 x a₂ x t₂

s₂ = 0 x t₂ + 1/2 x 9.8 x 2

s₂ = 0 + 9.8

s₂ = 9.8 m

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