Highly selective Backlog Qs for JEE MainPhysicsLaws of Motion
In the given figure, if the velocity of the block C at a particular instant is - 20 m s - 1 j ^ , then the velocity of the rod (A) at that instant will be : (string is attached to wedge)
Options
- A15 m s - 1 j ^
- B-15 m s - 1 j ^
- C20 m s - 1 j ^
- D-20 m s - 1 j ^
Correct answer
A. 15 m s - 1 j ^
Step-by-step solution
In the given figure, if the velocity l 1 ' + l 2 ' = 0 2 0 - u = 0 u = 2 0 m s - 1 By wedge constraint u sin 3 7 ∘ = v cos 3 7 ∘ v = u × 3 4 = 1 5 m s - 1 v → = 1 5 j ^