See the answers posted at
http://www.jiskha.com/display.cgi?id=1342656388
to the same question.
A student applies a force of magnitude 39.0 N at an angle of 22.6o with the horizontal to push a
4.00-kg textbook 1.00 m across a table from rest to a final speed of 1.75 m/s. Find the work
done by friction on the textbook.
1 answer