Astone is dropped into a river from a bridge 44.0 m above the water. another stone is thrown vertically down 1.72 s after the first is dropped. both stones strike the water at the same time. what is the initial speed of the second stone?

u₀ = 17.14 m/s

Explanation:

given,

bridge height = 44 m

initial speed of the first stone = 0 m/s

initial speed of the second stone = ?

difference after which the second stone is thrown = 1.72 s

for stone 1

for stone 2

t₁ = 14.69 s

u₀ = 17.14 m/s

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