See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

Conservation of momentum along horizontal v m  6 40 …(i) Newton’s law of restitution 3 20 2 3 2   v u …(ii) Linear momentum of ball will remain conserved along inclined 2a3 40 20 60° 60° v/2 v 3/2 v 3/2 u u u/2 Before Collision 20 2 3  u 3 40  u …(iii) From (i), (ii) and (iii) m = 4 kg For More Material Join: @JEEAdvanced_2025 AITS-CRT-IV-PCM(Sol.)-JEE(Main)/2025 FIITJEE Ltd., FIITJEE House, 29-A, Kalu Sarai, Sarvapriya Vihar, New Delhi -110016, Ph 46106000, 26569493, Fax 26513942 website: www.fiitjee.com 6 Chemistry PART – B SECTION – A