A5.0-kg box rests on a horizontal surface. the coefficient of kinetic friction between the box and surface is μk=0.50. a horizontal force pulls the box at constant velocity for 10 cm. find the work done by (a) the applied horizontal force, (b) the frictional force, and (c) the net force.

Explanation:

Given

mass of box

coefficient of kinetic Friction

Box is moving with constant velocity therefore net Force on object is zero

Force applied=Frictional Force

Force applied

(a)work done by applied Force

(b)Work done by Friction force

(c)Total Work done =work done by Force+Work done by Frictional Force

probably not if net force is zero

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.