The figure shows a thin rod, of length L = 1.60 m and negligible mass, that can pivot about one end to rotate in a vertic ball of mass m = 11.0 kg is attached to the other end. The rod is pulled aside to angle 0 = 23.0° and released with initia 0. As the ball descends to its lowest point, (a) how much work does the gravitational force do on it and (b) what is the o gravitational potential energy of the ball-Earth system? (c) If the gravitational potential energy is taken to be zero at t what is its value just as the ball is released?

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Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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The figure shows a thin rod, of length L = 1.60 m and negligible mass, that can pivot about one end to rotate in a vertical circle. A heavy
ball of mass m = 11.0 kg is attached to the other end. The rod is pulled aside to angle 00 = 23.0° and released with initial velocity 0 =
0. As the ball descends to its lowest point, (a) how much work does the gravitational force do on it and (b) what is the change in the
gravitational potential energy of the ball-Earth system? (c) If the gravitational potential energy is taken to be zero at the lowest point,
what is its value just as the ball is released?
L.
(a) Number
i
Units
(b) Number
i
Units
(c) Number
Units
>
>
>
Transcribed Image Text:The figure shows a thin rod, of length L = 1.60 m and negligible mass, that can pivot about one end to rotate in a vertical circle. A heavy ball of mass m = 11.0 kg is attached to the other end. The rod is pulled aside to angle 00 = 23.0° and released with initial velocity 0 = 0. As the ball descends to its lowest point, (a) how much work does the gravitational force do on it and (b) what is the change in the gravitational potential energy of the ball-Earth system? (c) If the gravitational potential energy is taken to be zero at the lowest point, what is its value just as the ball is released? L. (a) Number i Units (b) Number i Units (c) Number Units > > >
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