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3 years ago

It takes a car 2 minute(s) to go from rest to 25 m/s east. What is the acceleration

Physics

1 answer:

yKpoI14uk [10]3 years ago

5 0

Explanation:

we first convert 2 minutes to seconds,which will give us 120s (2×60).

v=u +at where (v=final velocity,u is the initial velocity,a is the acceleration of the car and t the time taken)

V=25 m/s

u=0 m/s since the car started from rest 

t=120s

substituting the values we get 

25=0+a (120)

25=120a (diving both sides by 120 we get)

a=0.208m/s^2

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Bogdan [553]

Answer:

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Explanation:

given data

distance r = 7.2 cm

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solution

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put here value

4.2 × $10^{-9}$ = $\frac{4\pi \times 10^{-7}}{2\pi } \times \frac{I^2}{7.2\times 10^{-2}}$

solve it we get

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Answer:

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3 years ago

Which has the greatest frictional force among this surfaces

fomenos

Answer:

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Explanation:

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3 years ago

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katrin2010 [14]

Answer:

Explanation:

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The question show something in common ...acceleration

So let's look at the statements and pick the correct ones

a is false while b is correct as the train is accelerating

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3 years ago

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fredd [130]

Answer:

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3 years ago