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A 500kg roller coaster is moving at 10 m/s on a straight portion of frictionless track. You need ___ Newtons of force to keep the train moving at a constant velocity. How many newtons??

How do you find any asymptotes of #f(x)=x/(x5)#?

How do you simplify #(x ^ { 2} + x ^ { 3} + 4)  ( x + 4x ^ { 2}  8)#?