physics 111

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A block of mass 2.50 kg is pushed 2.80 m along a frictionless horizontal table by a constant 10.0 N force directed 25.0° below the horizontal.

1) what's the work done by the applied force? in joules
2)whats the work done by the normal force exerted by the table? in joules

im completely lost on this problem, any help would be appreciated

  • physics 111 -

    1) distanceX(ForcepushXcos25)
    2) no work - no force in direction of motion
    3) no work - no force in direction of motion
    4) same as number 1 because table is frictionless and horizontal

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