A body is projected vertically up with a velocity 'u', show that the entire time of ascent is equal to the time of descent. Find also the maximum height reach?

A freely falling body describes 65.1m during the last second of it's fall.
Find the height from which it's fell and the total time taken to fall

A body is projected vertically up with a velocity 30m/s , after 3 seconds another body is projected up frame the same place with velocity 23m/s. When and where will they met?

A freely falling body describes 65.1m during the last second of it's fall.
Find the height from which it's fell and the total time taken to fall

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