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The velocity of end `A' of rigid rod placed between two smooth vertical walls moves with velocity `u' along vertical direction. Find out the velocity of end `B' of that rod, rod always remains in constant with the vertical walls.
                      
  • a)
    u tan 2q
  • b)
    u cot q 
  • c)
    u tan q
  • d)
    2u tan q
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
The velocity of end `A' of rigid rod placed between two smooth ver...
Along the length of the rod the velocities should be same or the rod will break 

and the velocity of B is always horizontal (net)

Velocity of A is vertical (net)

now take the components along the length and equate them 

usinθ=vcosθ

utanθ=v
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Most Upvoted Answer
The velocity of end `A' of rigid rod placed between two smooth ver...
Let say end b has some velocity v in horizontal direction. Thus by constraint motion we get the component of velocities along the rod of both the ends must be equal thus we get, 
u.cos (90-q) = v.cos q
Thus we get v = u.tan q
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Community Answer
The velocity of end `A' of rigid rod placed between two smooth ver...
'C' is correct answer
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The velocity of end `A' of rigid rod placed between two smooth vertical walls moves with velocity `u' along vertical direction. Find out the velocity of end `B' of that rod, rod always remains in constant with the vertical walls. a)u tan 2qb)u cot qc)u tan qd)2u tan qCorrect answer is option 'C'. Can you explain this answer?
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