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Grade 12th passMechanics

From a highest point O two bodies are thrown opposites direction horizontally with velocities 3m/s and 4 m/s .find the distance between them after some time when their velocity vector become mutually perpendicular

Profile image of Jagruti  Senapati
8 Years agoGrade 12th pass
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1 Answer

Profile image of Arun
8 Years ago
 
 
v1=3i – gtj
v2= – 4i – gtj
 
v1.v2=0 for 90 deg
 – 12+g^2t^2=0
gt=root12
t=root(12) /10
distance = 7 *root(12)/10