https://people.nscl.msu.edu/~lynch/Physics%20231%20lecture11.pdf

The 0.31kg mass slides on a frictionless wire that lies

The block has shown weight W and is on a horizontal rough surface at rest

until the time 𝑡 = 0 is applied an external force with only horizontal component

which varies with time 𝑃 (𝑡) = 𝑊𝑠𝑒𝑛 (

π

2

𝑟𝑎𝑑𝑠𝑡).

(A) Find the time when the block begins to move. (1.0 point)

(B) Find the speed of the block when 𝑡 = 2.0 𝑠.

https://www.physicsforums.com/threads/dynamics-question-work-and-energy-spring-problem.803070/

http://www.egr.msu.edu/classes/me371/hinds/ME221/CH5LATEX.PDF

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