A PARTICLE IS MOVING IN THE X-Y PLANE. AT t=0, it is located on the origin o (0,0) and its VELOCITY IS V=a(31/2 i+j),WHERE a IS A +VE CONSTANT.ITS ACC Is CONSTANT AND IS f=-(i+j). IN ITS SUBSEQUENT MOTION t>0 IT WILL CROSS X AXIS WHEN t=?
Dear Vardaan
Vy = a
fy =-1
it cross the x axis when its y co -ordinate will be zero
use h =Vy t +1/2fyt2
0= at -1/2t2
t=0 or 2a
t=o indicate initial position so
after t=2a it will cross x axis
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