Section: Solid Mechanics | Marks: 1
The lower end A of the rigid bar AB is moving horizontally on the floor towards right with a constant velocity of 5 m/s and the point B is sliding down the wall. The magnitude of the velocity of point B at the instant θ=30º is

- A. zero
- B. 4.34 m/s
- C. 7.25 m/s
- D. 8.66 m/s
Answer: D. 8.66 m/s