Question

a stone dropped from the top of the tree covers 6m height in the last 2 seconds of the fase find the height of the tree​

Answer 1

Answer:

Let it will take T time to cover the whole length

so we can say

H = \frac{1}{2}gT^2

now in last 0.2 s it will cover 6 m

H - 6 = \frac{1}{2}g(T - 0.2)^2

now by above two equations

\frac{1}{2}gT^2 - 6 = \frac{1}{2}g(T-2)^2

\frac{1}{2}g(2T - 2)(2) = 6

T = 1.3 s

now the height of the tree is

H = \frac{1}{2}*10*1.3^2

H = 8.45 m

sprayr38

Answer:

Explanation:

Ans =48.05 metres

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