3 years ago

How do I calculate velocity

Physics

1 answer:

Jobisdone [24]3 years ago

5 0

Answer: See photo

Explanation: There are a couple of ways to use velocity in an equation in the photo.

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(a) When the displacement in SHM is one-sixth the amplitude xm, what fraction of the total energy is kinetic energy? (b) What fr

andreev551 [17]

Answer:

Explanation:

$KE = \frac{1}{2}\times K\times (A^2-X^2)$

at $X = \frac{1}{6}A\\\\
KE = \frac{1}{2}\times K\times ( A^2 - A^{\frac{2}{36})\\\\
fraction = \frac{35}{36} = 0.9722
$

b) PE fraction = 1/36 = 0.02777

c) 1/2*KX^2 = 1/2*K*(A^2-X^2)

=> X = A/sqrt(2)

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3 years ago

What is the speed of light?

amm1812

<span>299 792 458 m / s hop i helped</span>

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Two balls move down a incline. One spins, while the other slides. Which one is going faster at the bottom?

natta225 [31]

Answer: the one spinnin

Explanation:

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2 years ago

A stubborn, 100 kgkg mule sits down and refuses to move. To drag the mule to the barn, the exasperated farmer ties a rope around

jolli1 [7]

Answer:

No, the farmer is not able to move the mule.

Explanation:

Mass =100 kg

Force=F=800 N

The coefficient between the mule and the ground= $\mu_s=0.8$

$\mu_k=0.5$

Static friction force,f= $\mu N$

Normal force=N=mg

Static friction force,f= $\mu_s mg=0.8\times 100\times 9.8=784 N$

Using $g=9.8m/s^2$

F<f

Static friction force is greater than applied force.

Therefore , the farmer is not able to move the mule.

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