At Westonci.ca, we provide clear, reliable answers to all your questions. Join our vibrant community and get the solutions you need. Explore thousands of questions and answers from knowledgeable experts in various fields on our Q&A platform. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.
Sagot :
The work done against friction as the mass slides is 8 J.
The given parameters:
- sliding mass, m = 5.0 kg
- distance traveled by the mass, s = 9.0 m
- height of incline, h = 2.0 m
- time of motion, t = 3.0 s
- kinetic energy of the object, K.E = 90 J
The work done against friction as the mass slides can be determined by applying work-energy theorem.
[tex]\Delta E= W\\\\P.E - K.E = W[/tex]
the change in mechanical energy of the sliding mass, is equal to energy lost to friction.
[tex]W = P.E - K.E\\\\W = mgh - K.E\\\\W = (5 \times 9.8 \times 2) - 90\\\\W = 98 - 90\\\\W = 8 \ J[/tex]
Thus, the work done against friction as the mass slides is 8 J.
Learn more about work-energy theorem here:https://brainly.com/question/10063455
We hope this was helpful. Please come back whenever you need more information or answers to your queries. We appreciate your time. Please revisit us for more reliable answers to any questions you may have. Find reliable answers at Westonci.ca. Visit us again for the latest updates and expert advice.