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r-ruslan [8.4K]
3 years ago
14

Friction marks are made by tools that indent a surface. True or false

Physics
2 answers:
k0ka [10]3 years ago
6 0
This statement is True.
IRINA_888 [86]3 years ago
4 0

Answer:

false

Explanation:

(im sorry if im not right but im pretty sure that false is the answer)

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A car with a mass of 2000 kg is moving around a circular curve at a uniform velocity of 25 m/s per second. The curve has a radiu
IrinaK [193]
The centripetal force is:
 F = mv² / R
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 m: mass of the object
 v: object speed
 R: radius of the curve.
 We have to:
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 v = 25 m / s
 R = 80 meters.
 Then the centripetal force acting on the vehicle is:
 F = (2000kg * (25m / s) ²) / 80m
 F = 15625 N
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Hope this helps!
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