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dedylja [7]
3 years ago
5

A person on a merry-go-round is constantly changing direction. True or false

Physics
2 answers:
Elden [556K]3 years ago
6 0
True. Because you’re always facing a different direction
guapka [62]3 years ago
6 0

True, you are spinning around

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Check the current weather map for 2 different times, and see where the center of the storm is. That tells you what direction it's moving. With its speed and direction, you have its velocity.
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A pulling force is called what?<br> A. normal<br> B. tension<br> C. balanced<br> D. compression
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3 years ago
Determine the magnitude of force F so that the resultant FR of the three forces is as small as possible.
Kamila [148]

Answer: FR=2.330kN

Explanation:

Write down x and y components.

Fx= FSin30°

Fy= FCos30°

Choose the forces acting up and right as positive.

∑(FR) =∑(Fx )

(FR) x= 5-Fsin30°= 5-0.5F

(FR) y= Fcos30°-4= 0.8660-F

Use Pythagoras theorem

F2R= √F2-11.93F+41

Differentiate both sides

2FRdFR/dF= 2F- 11.93

Set dFR/dF to 0

2F= 11.93

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Substitute value back into FR

FR= √F2(F square) - 11.93F + 41

FR=√(5.964)(5.964)-11.93(5.964)+41

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8 0
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