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Evgen [1.6K]
3 years ago
13

6. Draw conclusions: Newton’s first law states that an object in motion will travel at a constant velocity unless acted upon by

an unbalanced force. How do these experiments show this?
Physics
2 answers:
Nitella [24]3 years ago
7 0
I’m not sure what experiments you’re referring to. Maybe if there is a Frictional force that stops and object from sliding after a period of time instead of it continuing to slide forever.
gavmur [86]3 years ago
5 0
You can test if it’s true by holding a pencil in mid air over a table and the table is supposed to be the unbalanced forced that stopped the pencil from moving at the constant velocity it was going by.
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ASTM A229 oil-tempered carbon steel is used for a helical coil spring. The spring is wound with D = 50 mm d = 10.0 mm, and a pit
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Answer

given,

D = 50 mm = 0.05 m

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stress correction factor from stress correction curve is equal to 1.1

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\tau = \dfrac{8\times 3160 \times 0.05 \times 1.1}{\pi \times 0.01^3}

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The tensile strength of the steel material of  ASTM A229 is equal to 1300 Mpa

now,

\tau_s \leq 0.45 S_u

\tau_s \leq 0.45 \times 1300

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since corrected stress is less than the \tau_s

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