Recent content by sittisakbj

sorry i have not original question because some one ask me for this question and i sketch this image by my self . problem is: i hold mass 1 kg then i liberate it at height 50 m .at this time have the wind blows in horizontal from the left goes to right 20km/hr . if g = 9.81m/s^ 2 . How much...

Hello there, how i can solve and what 's answer for this problem(L=?) ?