ParticlesP and Q of mass 20 gand 40grespectivley are simultaenously projectedfrompoints A andB on the ground . Theinitial velocites of P andQ make 45^(@) and 135^(@) angles respectively withthe horizontal ABas sownin the Fig. Each particlehasan initial speed of 49m//s . TheseparationAB is 245 m. Bothparticletravlein the samevertical planeand undergo a collision. Aftercollision P retraces its path Determine the positon of Q when it hitsthe ground. How much time after the collision does the particle Q taketo reach the ground? (Takeg = 9.8 m//s^(2))

ParticlesP and Q of mass 20 gand 40grespectivley are simultaenously pr

1.	ParticlesP and Q of mass 20 gand 40grespectivley are simultaenously projectedfrompoints A andB on the ground . Theinitial velocites of P andQ make 45^(@) and 135^(@) angles respectively withthe horizontal ABas sownin the Fig. Each particlehasan initial speed of 49m//s . TheseparationAB is 245 m. Bothparticletravlein the samevertical planeand undergo a collision. Aftercollision P retraces its path Determine the positon of Q when it hitsthe ground. How much time after the collision does the particle Q taketo reach the ground? (Takeg = 9.8 m//s^(2))
Answer» SOLUTION :`61.25m , 3.565 s`

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