Discussion Forum : Physics
Question -
Two intersecting straight lines moves parallel to themselves with speeds 3 m/s and 4 m/s respectively . The speed of the point of intersection of the lines , if the angle between them is `90^circ` will be.
Answer: Option A
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The velocity of intersection point is
v = `sqrt(v_x^(2) + v_y^(2))`
= `sqrt(3^2 + 4^2)`
= 5 m/s
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