A wagon is pulled by a force of 60 pounds on the handle at an angle of 45 degrees to horizontal. What is the work done in moving the wagon 50 feet up a 15 degree hill?
I know how to find work in pulling the object horizontally. I don't know what changes when I pull the object uphill.
I know how to find work in pulling the object horizontally. I don't know what changes when I pull the object uphill.
1 Answer
May 9, 2018
Work done
#=>W=|vecF| |vecs| cos theta#
where#theta# is the anlge between force and displacement
Inserting given values and noting from the figure that
#W=60xx 50\ cos 30^@#
#=>W=60xx 50\ cos 30^@#
#=>W=2598\ ftcdotlb#