Question

a projectile reached maximum height is 10s its time of projectile is​

Answer 1

Answer:

We know that it reaches max height at half time(air resistance is neglected). So, Total time=20s

Hope this is the answer you are looking for

Answer 2

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The time of flight of a projectile is 20 s and range is 500m. Maximum height attained by it is [g=20m/s2]