Work Done and Energy

An object, which is initially at rest on a frictionless horizontal surface, is acted upon by four constant forces. F1 is 11.1 N acting due East, F2 is 28.6 N acting due North, F3 is 52.1 N acting due West, and F4 is 14.1 N acting due South. How much total work is done on the object in 3.33 seconds, if it has a mass of 14.0 kg? How fast does the object end up moving at the end of the 3.33 seconds?

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