Question bank/JEE Main/Physics

A particle is projected from point P with velocity
[IMAGE] ms-1 perpendicular to the surface of a hollow
right angled cone as shown in figure. It collides at Q normally. The
velocity with which it collides at Q will be ( in m/sec )
[IMAGE] ms-1
P Q Q

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[IMAGE] u cos 30° = V cos 60°
[IMAGE] TOPIC:KINEMATIC
SUB TOPIC: 2 D

Source: Grass-G / P-03 Paper 1 (Physics) Eng. + Hindi 24-8-2020.docx