A box weighing 200N rests on an inclined surface. A worker applies a horizontal
ID: 1860874 • Letter: A
Question
A box weighing 200N rests on an inclined surface. A worker applies a horizontal force F to help position the box. Determine the x and y components of the resultant of forces W and F. Also determine the t and n components of the resultant force vector. comment on t and n components might be useful to know.
I know the answer to this problem, but if someone could give me an explanation on when we use which formulas, such as when to use (-i) and (-j) vs (i) and (j), that would be awesome. Thanks!
A box weighing 200N rests on an inclined surface. A worker applies a horizontal force F to help position the box. Determine the x and y components of the resultant of forces W and F. Also determine the t and n components of the resultant force vector. comment on t and n components might be useful to know. I know the answer to this problem, but if someone could give me an explanation on when we use which formulas, such as when to use (-i) and (-j) vs (i) and (j), that would be awesome. Thanks!Explanation / Answer
Ft = 100cos30 = 86.6N
Fn = -100sin30 = -50N
Wt = - 200sin30 = -100N
Wn = -200cos30 = -173.2N
Net,
t = 86.6 - 100 = -13.4N
n = -50 - 173.2 = -223.2N
in x-y coordinets
F = 100i
W = -200j
resultant = 100i - 200j
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.