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Three particles start from the origin at the same time,one with a velocity u1 along x axis,the second along the y axis with a velocity u2 and the third along the x=y line.the velocity of the third so that the three may lie on the same line is??
Asked by Sunita | 05 Jun, 2019, 01:38: PM
Expert Answer
Let at instant of time t, particle Q has moved u1t m along x-axis and partcle P has moved u2t m along y-axis.
The line joining P and Q is .............................(1)
particle R is moving along the line, y = x .....................(2)
if P, Q and R are in line at time t, then coordinate of R is the point of intersection of eqn.(1) and eqn.(2)
we get point of intersection as,
Hence displacement OR at time t = √2 α t
Hence velocity of particle-R = √2 α =
Answered by Thiyagarajan K | 05 Jun, 2019, 09:32: PM
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