- #1

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Find k, the spring constant.

Express k in terms of mu, m, v, and g .

Any ideas how on setting this up? KE1 + SPE1 = KE2 + SPE2 is where I'm headed...

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- Thread starter Trojanof01
- Start date

- #1

- 13

- 0

Find k, the spring constant.

Express k in terms of mu, m, v, and g .

Any ideas how on setting this up? KE1 + SPE1 = KE2 + SPE2 is where I'm headed...

- #2

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- #3

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Work-energy theorem: E_f-E_i=W_fr:

0-(1/2)*m*v^2=- mu*m*g*2*x

x = .5v^2 / (2g(mu)) Max compression of spring

W=-mu*m*g*x

E_i=(1/2)*m*v^2 )

E_f=(1/2)*k*x^2

Work-energy theorem:

(1/2)*k*x^2-(1/2)*m*v^2=-mu*m*g*x

Plugged into x and solved for k and got 2m(mu)g...answer was incorrect. Any ideas?

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