Question

a body is dropped from the roof of a multi storey building.it passes the ceiling of the 15 storey at the speed of 20 metre per second if the height of each storeys is 4 metre the number of stories in the building is take g=10,neglect air resistance....




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Answer 1

Answer:

It is a 20 storey building

Explanation:

u = 0 , v = 20 , a = 10

by v² - u² = 2as

s = 20m

as each storey is 4m it passed 4 storeys from the top of the building to reach 15th storey.

So 5 + 15 = 20

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Answer 2

Answer:

this is your answer pls mark as brainleast