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Andreyy89
3 years ago
9

For the energy function V (x) = cos(x) for –[infinity] ≤x≤ +[infinity], find the values x=xsthat identify stable equilibria, and

the values x = xuthat identify unstable equilibria.
Physics
1 answer:
solmaris [256]3 years ago
8 0

Answer:

look it up

Explanation:

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Answer:

(a) a=2m/sec^2

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Explanation:

We have given mass m = 290 kg

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Final velocity v = 6 m/sec

Time t = 3 sec

From first equation of motion

v = u+at

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(a) We know that force is given by

F = ma

So force will be F=290\times 2=580N

(b) From second equation of motion we know that

s=ut+\frac{1}{2}at^2=0\times 3+\frac{1}{2}\times 2\times 3^2=9m

We know that work done is given by

W = F s = 580×9 =5220 j

(c) Time is given as t = 3 sec

We know that power is given as

P=\frac{W}{t}=\frac{5220}{3}=1740Watt

(d) Time t = 1.5 sec

So P=\frac{W}{t}=\frac{5220}{1.5}=3466.66Watt

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For the first situation, we first need to find the mass of the second train car.

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