Finding work done physics problem (challenging question)
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Finding work done physics problem (challenging question)

[From: ] [author: ] [Date: 11-09-23] [Hit: ]
What is the final speed of the block?*No need to fully work out the problem, I am able, would just like help setting up formulas, thanks!Solve for final velocity from KEf.......
A force F=24 N acts at 60º above the horizontal on a 3-kg block that is attached to a spring whose stiffness constant is k=20 N/m. Assume µ=0.1. The system starts at rest with the spring unextended. If the block moves 40 cm..

Find the work done by 1) F, 2) by friction, 3) by the spring.
What is the final speed of the block?

*No need to fully work out the problem, I am able, would just like help setting up formulas, thanks!*

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Use Work-Energy Theorem in the form;
Net Work By Non-Coservative Forces = Change in KE + Change in PE
W(net) = (KEf - KEi) + (PEf - PEi)
FxS - fS = (KEf - 0) + (PEf - 0)

Solve for final velocity from KEf.
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