Yes but the formula W=|F||D|cos a can be used instead of W=F(dot)D in order to avoid vectors and instead use magnitudes only.
Also gravity is neglected in this particular problem and units are not required.
Well I've tried the plug n' chug method with the numbers give:
W=F(dot)D=|F||D|cos a
W=(22 lbs.)(6 ft.)(cos 17)
W=126.232 ~ 126
But this answer is incorrect, unless the answer registered in the system is incorrect.
Hey all,
I'm a bit stuck on a problem on my online homework for my calc 3 class, hopefully someone can help me out.
Suppose that you push with a horizontal force on a box, to push it up a horizontal ramp, as shown in...