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IRISSAK [1]
3 years ago
5

If an object is not accelerating, then one knows for sure that it is_____.​

Physics
1 answer:
Sauron [17]3 years ago
6 0
The object is maintaining a constant velocity
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A solid uniform cylinder of mass 4.1 kg and radius 0.057 m rolls without slipping at a speed of 0.79 m/s. What is the cylinder’s
Amiraneli [1.4K]

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Explanation:

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Mass = 4.1 kg

Radius = 0.057 m

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K.E_{l}=\dfrac{1}{2}mv^2

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We need to calculate the rotational kinetic energy

K.E_{r}=\dfrac{1}{2}\times I\omega^2

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K.E_{r}=\dfrac{1}{4}\times m\times v^2

K.E_{r}=\dfrac{1}{4}\times4.1\times(0.79)^2

K.E_{r}=0.639\ J

The total kinetic energy is given by

K.E=K.E_{l}+K.E_{r}

K.E=1.279+0.639

K.E=1.918\ J

Hence, The cylinder’s total kinetic energy is 1.918 J.

8 0
3 years ago
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