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vagabundo [1.1K]
3 years ago
9

If a curve with a radius of 65 m is properly banked for a car traveling 75 km/h, what must be the coefficient of static friction

for a car not to skid when traveling at 104 km/h?
Physics
1 answer:
STALIN [3.7K]3 years ago
8 0
As a car makes a turn, the force of friction acting upon the turned wheels of the car provides centripetal force required for circular motion. Equation to follow are F = mv²/r  "Force of friction"  Ff= μsN, Normal N=mg Ff=μsmg. Therfore
mv²/r = μsmg  cancel mass "m" The formula to follow will be μs = v²/rg
 
μs = v²/rg  μs = (28.89 m/s²)²/ (65 m)(9.8 m/s²) =  1.31
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3 years ago
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astra-53 [7]

Answer:

Work done, W = 6 J

Explanation:

It is given that,

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W=Fd\cos180\\\\W=15\times 0.4\times \cos180\\\\W=-6\ J

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3 years ago
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DENIUS [597]

For E = 200 gpa and i = 65. 0(106) mm4,  the slope of end a of the cantilevered beam  is mathematically given as

A=0.0048rads

<h3>What is the slope of end a of the cantilevered beam?</h3>

Generally, the equation for the   is mathematically given as

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Therefore

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A=0.00288+0.00192=0.0048rads

A=0.0048rads

In conclusion,  the slope is

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brainly.com/question/14375099

5 0
2 years ago
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Answer:

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