4. (ROTATIONAL DYNAMICS) The figure below shows particles 1 and 2, with masses m1 = 0.05 kg and m₂ = 0.1 kg, respectively, attached to the ends of a rigid massless rod of length L1 + L2, with L₁ 20 cm and L2 80 cm. The rod is held horizontally on the fulcrum (or triangular support) and then released. (a) What is the magnitude of the tangential acceleration of particle 1 immediately after the rod is released? (b) What is the magnitude of the tangential acceleration of particle 2 immediately after the rod is released? (c) Where would the fulcrum have to be located in order for the system to instead balance (rather than rotate) when released? Find and report the necessary distance of the fulcrum from particle 1. +4+ L₂ 2

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Chapter1: Units, Trigonometry. And Vectors
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4. (ROTATIONAL DYNAMICS) The figure below shows particles 1 and 2, with masses
m₁ =
0.05 kg and m2 = 0.1 kg, respectively, attached to the ends of a rigid massless
rod of length L₁ + L2, with L₁ = 20 cm and L2 = 80 cm. The rod is held horizontally on
the fulcrum (or triangular support) and then released.
(a) What is the magnitude of the tangential acceleration of particle 1 immediately after
the rod is released?
(b) What is the magnitude of the tangential acceleration of particle 2 immediately after
the rod is released?
(c) Where would the fulcrum have to be located in order for the system to instead balance
(rather than rotate) when released? Find and report the necessary distance of the
fulcrum from particle 1.
|4+
-L2
2
H
Transcribed Image Text:4. (ROTATIONAL DYNAMICS) The figure below shows particles 1 and 2, with masses m₁ = 0.05 kg and m2 = 0.1 kg, respectively, attached to the ends of a rigid massless rod of length L₁ + L2, with L₁ = 20 cm and L2 = 80 cm. The rod is held horizontally on the fulcrum (or triangular support) and then released. (a) What is the magnitude of the tangential acceleration of particle 1 immediately after the rod is released? (b) What is the magnitude of the tangential acceleration of particle 2 immediately after the rod is released? (c) Where would the fulcrum have to be located in order for the system to instead balance (rather than rotate) when released? Find and report the necessary distance of the fulcrum from particle 1. |4+ -L2 2 H
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