Question

A Revi Express your answer using three significant figures. The gear A on the drive shaft of the outboard motor has a radius TA = 0.7 in, and the meshed pinion gear B on the propeller shaft has a radius TB = 1.4 in. The drive shaft rotates with an angular acceleration a= (300VT) rad/s", where I is in seconds. The propeller is originally at rest and the motor frame does not move. (Figure 1) V AED IT vec O P ? =p" ܐ ft/s Figure < 1 of 1 > Submit Request Answer Part B Determine the magnitude of the acceleration of a point P located on the tip of the propeller at the instant t = 0.67 s. Express your answer using three significant figures. V AE it vec O p ? ap = ft/ Submit Request Answer

Answer 1

# do = Qdt 0.67_ o das = 300 ] Nadt (W-0) = 300[37 (0.673/2_0512) » W = 109.684 radls 3 # a=3000E = 30000.67 = 245-56 rad/st E # For mating gears! OB OB = CUANA » WB (14) = 109.684(0-7) » WB = 54-842 radis E ş LB VB = XARA QB (1.4) = 245.56 (0.7) » XB = 122.78 rad • vp = op Wp = (R: 2 ft) (54.8 42 Vodk) - vp = | 10.05 ft/s # ap = re d auga tao? = = 2 54.842% + 122-792 - » Op = 1 552 | ft/8²