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Classical Mechanics

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Delta-IV Rocket

CLMECH-3WVIRW

The Delta-IV rocket pictured below (configured with two booster rockets in addition to the main engine) produces $9.4\times 10^6 N$ of thrust and has a mass of $7.1\times10^5 kg$.

What is its acceleration at liftoff?

"Delta IV launch 2013-08-28" Wikimedia Commons. N.p., 28 Aug 2013. Web. 14 Mar. 2016.