The crane shown rotates at the constant rate 1 0 25 rad s simultaneously, the telescoping boom is being lowered at the constant rate 2 0 40 rad s Knowing that at the instant shown the length of the boom is 6 m and is increasing at the constant rate u 0 45 m s, determine the velocity and acceleratio...

TBA B 6 m sin 30j cos 30k 3 mj 33 mk Geometry Method 1 Let the unextending portion of the boom AB be a rotating frame of reference Its angular velocit ...

The crane shown rotates at the constant rate 1 = 0.25 rad/s; simultaneously, the telescoping boom is

Question:

The crane shown rotates at the constant rate ω1 = 0.25 rad/s; simultaneously, the telescoping boom is being lowered at the constant rate ω2 = 0.40 rad/s. Knowing that at the instant shown the length of the boom is 6 m and is increasing at the constant rate u = 0.45 m/s, determine the velocity and acceleration of point B.