Question

06 Determine the relative velocity of particle B with respect to particle A A) (48i30j) km/h B) (-48i+30j ) km/h C) (48i 30j ) km/h D) (-48i -30j ) km/h B VB=100 km/h 30° A VA-60 km/h 2. If theta equals 90° and A and B start moving from the same point, what is the magnitude of TBIA at t 5 s? A) 20 ft C) 18 ft B) 15 ft VB= 4 ft/s D) 25 ft A =3 ft/s Q7) The fan blades suddenly experience an angular acceleration of 2 rad/s. If the blades are rotating with an initial angular velocity of 4 rad/s, determine the speed of point P when the blades have turned 2 revolutions (when = 8.14 rad/s). A) C) 1. B) 17.7 ft/s D) 26.7 ft/s 14.2 ft/s 23.1 ft/s AY NOT Determine the magnitude of the acceleration at P when the blades have turned the 2 revolutions A) C) 2. B) 3.5 ft/s D) 116 ft/s O ft/s 115.95 ft/s Q8) Given: Gear A is given an angular acceleration a= 4t° rad/s, where t is in seconds, and (o= 20 rad/s. Find: The angular velocity and angular displacement of gear B when t 2 s. Page 4 of 7

Answer 1

PeTs Na 6 1. 3 equaubn mon پ ماكلاز U 6o cos 3o = 51.90 Gosinso 4 x 2y 4T Jou L-S2 V VA 48t-30) kmlh Now I7S 8.14 t - 14.2S for ago (A). VA 3 St VXt - 4 xs 2a 20 t -acalurulipn a Ad20 2 x I-75 Ans KA = 4E17adts rdd/s d w Nou ZrodTs (4telt KAdi raca Lawdlulien w 7

Pate Page No. O. at C C--20 at So tw 36 radts, Notw +20E ulor CNo O ak 6.4 + -36-radts vetoy gular nyula dislaamnt raduan こ46.4