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March 2, 2015

March 2, 2015

Posted by **charles** on Friday, July 11, 2014 at 12:11pm.

- physics -
**MathMate**, Friday, July 11, 2014 at 8:30pmInitial speed = 98 km/h = 98/3.6 m/s

Work done

= KE(final)-KE(initial)

= (1/2)1370(0²-(98/3.6)²)

= -508 kJ (approx.)

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