I'm having a problem with a physics question from a exam I'm currently training for. I have no way of knowing if this is correct so I'm asking for help to review my answer!
This box is on a 20degree incline and the spring constant K is 2500 n/m. Before the box was attached to the spring the spring was 500mm and after 565 so a 65mm difference.
The question is what does the box weigh? DL= the difference of the spring before and after the box, 0.065 meters. K=2500n/ms
I thought abit about it and thought about hooks law which is F=DL K. Then I did this, MGsin20=DL K since the box is a 20 degree angle. then I just divided away g and sin 20 and came up with the box weighed 48.38kgs.
Please would appreciate some help if I'm in the right ballpark or not. Thanks for future answers!