I think it's B ,go to physicsclassroom.com Newton's second law
The angular velocity of the propeller is 136.1 rad/s; linear velocity is 153.1 m/s; centripetal acceleration 20835.2 m/s² and 2123.8 g.
<h3>What is the angular velocity of the propeller?</h3>
The angular velocity of the propeller in rad/s is given as follows:
1300 rev/min = 1300 * 2π/60 = 136.1 rad/s.
b. The linear velocity, v = radius * angular velocity
Linear velocity, v = 2.25/2 * 136.1
v = 153.1 m/s
c. Centripetal acceleration, ![a = \frac{v^{2}}{r}](https://tex.z-dn.net/?f=a%20%3D%20%5Cfrac%7Bv%5E%7B2%7D%7D%7Br%7D)
![a = \frac{(153.1)^{2}}{1.125} = 20835.2\:ms^{2}](https://tex.z-dn.net/?f=a%20%3D%20%5Cfrac%7B%28153.1%29%5E%7B2%7D%7D%7B1.125%7D%20%3D%2020835.2%5C%3Ams%5E%7B2%7D)
Centripetal acceleration in terms of g; ![g = \frac{20835.2}{9.81} = 2123.8 g](https://tex.z-dn.net/?f=g%20%3D%20%5Cfrac%7B20835.2%7D%7B9.81%7D%20%3D%202123.8%20g)
Therefore, the angular velocity of the propeller is 136.1 rad/s; linear velocity is 153.1 m/s; centripetal acceleration 20835.2 m/s² and 2123.8 g.
Learn more about angular velocity and centripetal acceleration at: brainly.com/question/10703948
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<span>In the vertical direction
there is no change of momentum.
Momentum in vertical = 1.5 * 9 = 13.5
Speed in vertical = 9 m/s
Momentum of Raven in x + momentum of falcon = initial momentum in x
=> Mx + 600*5 = 600*20
=> Mx = 600*15
=> Vx = 6000
Vy = 9
=> tanθ = 0.6 kg/9 = 0.066667</span>
<span>=> θ = 48.0128 degrees</span>
<span> </span>