A straight rod of mass m=20 kg and length l=2.1 m is supported by a pin at its bottom end. The rod passes its upright position with an angular velocity w=1 rad/s. a) Find acceleration of the centre of mass of the rod at that instant. b) Find the velocity of the centre of mass at the instant when the rod is just horizontal. C) State the theorem of conservation of mechanical energy in one sentence. v=?
A straight rod of mass m=20 kg and length l=2.1 m is supported by a pin at its bottom end. The rod passes its upright position with an angular velocity w=1 rad/s. a) Find acceleration of the centre of mass of the rod at that instant. b) Find the velocity of the centre of mass at the instant when the rod is just horizontal. C) State the theorem of conservation of mechanical energy in one sentence. v=?
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Transcribed Image Text:A straight rod of mass m=20 kg and length =2.1 m js supported by a pin at its bottom end.
The rod passes its upright position with an angular velocity w,=1 rad/s.
a) Find acceleration of the centre of mass of the rod at that instant.
b) Find the velocity of the centre of mass at the instant when the rod is just horizontal.
C) State the theorem of conservation of mechanical energy in one sentence.
v= ?
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