To calculate the angular speeds of the two bars B2 and B3, you need to use the two point formula:

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The link Ab rotates with an constant velocity of 4 rad/second clockwise.  (A) Find the velocity of B and D, and (B) find the acceleration at B and D.

I need help.

Hand written please.

3.2

2. The motor on the car wash sprayer rotates counterclockwise at a constant rate of 120 rpm. At the instant when, use the relative acceleration method to analytically determine the angular velocity and angular acceleration of the nozzle arm. (0= 40°) 1.5" 10" 12" 6"

In the image on the right, there is a red gear G1 on the left with a radius of r1 = 2.81cm. Gear G1 is locked to the green gear G2 with a radius of r2 = 0.734cm. Gear G2 then shares the same axle as the blue circular saw G3, which has a radius of r3 known to make a full rotation every T = 0.836s. Using at least 6 significant digits in your calculations, compute the following: V3! 12.8cm. Gear G1 is W1 a) The angular speed wi of gear G1. Remember that angular speed is measured in radians per T3 r2 unit time. G2 b) The rim speed vi of gear G1. Since gears G1 and G2 are locked together, the rim speed of G2 is also v1. G1 G3 c) The angular speed w2 of gear G2. Since gear G2 and saw G3 share the same axle, the angular speed of G3 is also w2. d) The rim speed v3 of saw G3.

Determine the magnitude of angular velocity in rad/s of har BC

I'm trying to understand this problem is there an easier way to solve  other than the the solution I attached? That just doesn't look like a relative acceleration equation it is so complicated any help is so appreciated thanks.