Question

please given me answers with details

Answer 1

in physical term or you can say in scientific language the question can be read as follows:

what must be the initial velocity "u" be given to a stone so that reaching a height or displacement of 10 m its final velocity "v" becomes zero.
g or a(acceleration) = -9.8 (or -10) m/s²
v = 0 m/s
s = 10 m
Find u ?
[now can you solve it
you should solve it yourself
understand the question and try to solve yourself]

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thank you for asking}