Show your work for this problem: A heavy cardboard box is pushed along a tile floor at a constant velocity. The coefficient of friction .2 and the gravitational weight of the box is 98 N. What is the kinetic force of friction between the box and the tile floor?

i think the answer is a, hope this is right, that would be my best guess.

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answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.

the components of a vector are the parts of the vectors that are to each other.

b perpendicular