A 10 kg box is being pushed up a slippery ramp at and angle of 10 degrees. The coefficient of friction between the box and the ramp is just µ=0.1
a.) What force does the man need to apply to the box to keep it traveling up the ramp at a steady speed?
b.) What fraction of the weight of the box is this?
If the angle of the ramp is raised to 45 degrees then:
c.) What force does the man need to apply to the box to keep it traveling up the ramp at a steady speed now?
d.) What fraction of the weight force of the box is this?