Particles P and Q of masses 20 g and 40 g respectively are projected from positions A and…
Physics · JEE Advanced · NTA Exams — Laws of Motion
Particles P and Q of masses 20 g and 40 g respectively are projected from positions A and B on the ground. The initial velocities of P and Q make angles of 45° and 135°, repectively with the horizontal as shown. Each particle has an initial speed of 49 m/s. The separation AB is 245 m. Both particles travel in the same vertical plane and undergo a collision. After the collision P retraces its path. The position of Q when it hits the ground is
- 245 m
- \(\frac{245}{3} \mathrm{~m}\)
- \(\frac{245}{2} \mathrm{~m}\)
- \(\frac{245}{\sqrt{2}} \mathrm{~m}\)
Answer
(C) 245 2 ~m
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