عالم البنات النسائي كل ما يخص المرأة العربية من ازياء وجمال والحياة الزوجية والمطبخ
➡ 😳 ابا حد يحل هالسؤال ماعرفته اففف
A 72.0 kg swimmer jumps into the old swimming hole from a divingboard 3.25m above the water. Use energy conservation to find hisspeed just as he hits the water
(a) if he just holds his nose and drops in,
(b) if he bravely jumps straight up (but just beyond the board!) at2.50m/s and
(c) if he manages to jump downward at 2.50m/s
