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77julia77 [94]
3 years ago
13

How much force is generated when a 200 kg block is accelerated at a rate of 25 m/s?

Physics
1 answer:
katen-ka-za [31]3 years ago
8 0

Answer:

F= 5000 N

Explanation:

This problem is related to force on a body, and to tackle it we need to apply newtons first law of motion which states that "a body will continue to be at rest or uniform motion except acted upon by an external force greater than the force keeping the body at rest or uniform motion"

given

mass m= 200kg

acceleration a= 25 m/s

we know that

F= ma

F= 200*25

F= 5000 N

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<u>Explanation</u>:

<u>Given</u>:

Radius of the track, r =  516 m

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<u>To Find:</u>

The coefficient of  static friction between the tires and the road = ?

<u>Solution</u>:

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a_{R = \frac{(1075.84)}{516}

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\text{ total acceleration} = \sqrt{\text{(tangential acceleration)}^2 +{\text{(Radial acceleration)}^2

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=>\sqrt{ (15.1321)+(4.347)^2}

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Now the coefficient of  static friction is

\mu =\frac{f}{W}

From (1) and (2)

\mu =\frac{ma}{mg}

\mu =\frac{a}{g}

Substituting the values, we get

\mu =\frac{19.4791}{9.8}

\mu =1.987

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