I agree with your prioritization of lectures. I'll practice your advice of dissecting the questions to determine the structure of each. Thank you for your further advice/response. :smile:
Initially, I intend to review the material/homework alone. If I'm stumped on a question or unsatisfied with the description of the book, I intend to meet with my professor. Last week, I bought a book which is mostly a compilation of practice questions. It'll arrive soon. I'll remember your...
Yes, I watch Khan Academy for conceptual understanding. After I develop a vague understanding of the terms, I tackle the questions reviewed in class. I agree with you that multiple perspectives on topics is valuable. Hence, I bought three supplementary books. If the wording of one puzzles me...
Are you agreeing with my displacement value for the first question? I'd submit it, but my amount of submissions are low. Thus, I'm risking losing credit. :nb)
The work done by friction by my calculations for the first question is -4.88d because I'm firstly solving for displacement. I summed the forces in the parallel direction first and then multiplied that number by the displacement (unknown). For the first question, I presume that the work done by...
I misinterpreted the question. If gravity and friction are resisting its movement, both would be negative. Therefore, the sum of the forces is -24.2N. When divided by the total work (-486 J), my answer is 20.1m.
Homework Statement :
A 3.0 kg block starts with a speed of 18 m/s at the bottom of a plane inclined at 41° to the horizontal. The coefficient of sliding friction between the block and plane is
μk = 0.22.
a) Use the work–energy principle to determine how far (in m) the block slides along the...
Your instincts were correct, but that's ridiculous because, as you mentioned earlier, the measurements are listed in TWO significant figures... THANK YOU!
I submitted "0.13" as my answer, but when I copied my calculations from paper to the whiteboard to check it from a broader perspective and capture a picture, I forgot that the negatives canceled when you divide (144.5-228)/626 at the end. Nonetheless, I'm still stuck. ?:)
Homework Statement :
A sled starts from rest at the top of a snow-covered incline that makes a 20° angle with the horizontal. After sliding 68 m down the slope, its speed is 17 m/s. Use the work–energy theorem to calculate the coefficient of kinetic friction between the runners of the sled and...