# physics

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A child pulls on a wagon handle at an angle 37° above the horizontal with a force of 45 N. If the wagon accelerates at 8.1 m/s2 horizontally, what is the mass of the wagon? Assume frictional forces are negligible.

• physics -

first figure the horizontal force.

forceh=45*cos37

that has to equal mass*a

solve for mass.

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