An object is moved along a horizontal surface by a force applied at somw degrees from the horizontal. The force that does the negative work on the object is _____ a. Friction b.Force of gravity c.Vertical component of the applied force The force that does no work on the object ______ a. friction b.force of the gravity c.the applied of gravity d.horizontal conponent of the applied force if a big person and small person run up the stairs at the same time, which of them does greater work? a. small person b.big person c.both of them d.insufficient data if the sign of work is negative ____
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An object is moved along a horizontal surface by a force applied at somw degrees from the horizontal.
The force that does the negative work on the object is _____
a. Friction
b.Force of gravity
c.Vertical component of the applied force
The force that does no work on the object ______
a. friction
b.force of the gravity
c.the applied of gravity
d.horizontal conponent of the applied force
if a big person and small person run up the stairs at the same time, which of them does greater work?
a. small person
b.big person
c.both of them
d.insufficient data
if the sign of work is negative ____
a. the force is in the same direction as the displacement
b.the force is perpendicular to the displacement
c.the component of the force that does work is in the direction opposite the displacement
d.the component of the force that does work is perpendicular to the displacement
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