A ball is thrown vertically upward with some velocity. A constant air resistance acts. If the time of ascent is t1 and that of descent is t2, then A ball is thrown vertically upward with some velocity. A constant air resistance acts. If the time of ascent is t1 and that of descent is t2 then September 9, 2020 Category: Cengage NEET by C.P Singh , Chapter 7 - Friction , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related