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physics

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A block of mass 2.50 kg is pushed 2.40 m along a frictionless horizontal table by a constant 14.0 N force directed 25.0° below the horizontal.
(a) Determine the work done by the applied force.
1 J
(b) Determine the work done by the normal force exerted by the table.

  • physics -

    (a) 14.0 cos 25 * 2.40 m = ___ Joules

    (b) zero. It is perpendicular to the motion

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