Two bodies which are at different heights from the ground. start falling under the gravity, the times of fall of two bodies are 1 s and 2 s respectively. what is the initial separation between between the two bodies ?
a) `4.9m`
b) `9.8m`
c) `14.7m`
d) `19.6m`

Two bodies of masses m_1 and m_2(

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