A uniform rod of mass M = 2 kg and length L = 1.5 m is attached to a wall with a frictionless pivot and a string as shown in the diagram above. The initial angle of the rod with respect to the wall, is = 39º. The string is then cut. The moment of inertia of a rod about an axis through one end is 1/3ML². What is the angular acceleration of the rod, a, immediately after the string is cut? A: a = 6.17 rad/s² What is the angular velocity w of the rod when it is horizontal (0 = 90°)? A: w 3.9 rad/sec 0 ΔΕ(m) = 0 T net, P = la 2 2 Iw₁² + MgYcm1 = Iw² + MgYcm0
A uniform rod of mass M = 2 kg and length L = 1.5 m is attached to a wall with a frictionless pivot and a string as shown in the diagram above. The initial angle of the rod with respect to the wall, is = 39º. The string is then cut. The moment of inertia of a rod about an axis through one end is 1/3ML². What is the angular acceleration of the rod, a, immediately after the string is cut? A: a = 6.17 rad/s² What is the angular velocity w of the rod when it is horizontal (0 = 90°)? A: w 3.9 rad/sec 0 ΔΕ(m) = 0 T net, P = la 2 2 Iw₁² + MgYcm1 = Iw² + MgYcm0
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![A uniform rod of mass M = 2 kg and length L = 1.5 m is
attached to a wall with a frictionless pivot and a string as
shown in the diagram above. The initial angle of the rod with
respect to the wall, is = 39º. The string is then cut. The
moment of inertia of a rod about an axis through one end is
1/3ML².
What is the angular acceleration of the
rod, a, immediately after the string is cut?
A: a = 6.17 rad/s²
What is the angular velocity w of the rod
when it is horizontal (0 = 90°)?
A: w 3.9 rad/sec
0
ΔΕ(m) = 0
T
net, P
= la
2
2
Iw₁² + MgYcm1 = Iw² + MgYcm0](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fed03a92d-cb24-434f-b854-ef4e4c131545%2F1076f0b1-cf23-4c68-9339-3288cbf3acdd%2Fvm2dcp8_processed.png&w=3840&q=75)
Transcribed Image Text:A uniform rod of mass M = 2 kg and length L = 1.5 m is
attached to a wall with a frictionless pivot and a string as
shown in the diagram above. The initial angle of the rod with
respect to the wall, is = 39º. The string is then cut. The
moment of inertia of a rod about an axis through one end is
1/3ML².
What is the angular acceleration of the
rod, a, immediately after the string is cut?
A: a = 6.17 rad/s²
What is the angular velocity w of the rod
when it is horizontal (0 = 90°)?
A: w 3.9 rad/sec
0
ΔΕ(m) = 0
T
net, P
= la
2
2
Iw₁² + MgYcm1 = Iw² + MgYcm0
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