1.

A man moving on track ABC, getting rain drops vertical for the path AB, and along same line of its motion for path BC then actual speed of rain drop is

Answer»

`10sqrt3ms^(-1)`
`(10)/(sqrt3)ms^(-1)`
`5sqrt3ms^(-1)`
Can't find

Solution :`bar(V)_(R ) = V_(X)i +V_(y)i`

For path AB `V_(x) = 5 ms^(-1)`
For path BC velocity of rain `_|_r` to BC should be zero hence
`V_(x)sin30^(@) = V_(y)COS30^(@) V_(y) = (5)/(sqrt3)ms^(-1)`
`V_(R ) = sqrt(V_(x)^(2)+V_(y)^(2))= (10)/(sqrt3)ms^(-1)`


Discussion

No Comment Found

Related InterviewSolutions