Bibliography

Knight, Randall d. Physics for Scientists and Engineers, a Strategic Approach. 3rd ed. New York: Pearson, 2013. Print.

Hibbeler, R.C. Engineering Mechanics Statics and Dynamics. 13th ed. New Jersey, 2013. Print.

"Web Info."Newman, David. n.d. web. 25 November 2014.

Lawrence, David. "Skiing Without Snow: The Upside of Roller Skiing." Web Extra. Web Extra. Fall 2011. web. 25 November 2014.

n.a."Roller Skiing." theguardian. theguardian. 28 September 2007. web. 25 November 2014.



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