This probably isn't quite the question that one would expect on but i really want to know what exactly it was that i did wrong:

i was asked this question on e2020 (the e standing for education), and i was positive that i did all of the equations that i had to do right. i got the direction of r right on my first try (both ys add to zero, so the angle is automatically 0°), but i'm stumped on how i'm supposed to get 0.5n for the magnitude. if anybody knows the process that i missed, then let me know. i took a screencap of the question that this happened on for you to have a reference.

its c its is a mixture of gases

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards

option number c is the right answer.