Can you please explain how use the force model to answer the question A 2kg block is initially moving at 4 m/s to

Question

Can you please explain how use the force model to answer the question A 2kg block is initially moving at 4 m/s to

the right on a frictionless, level surface when a 5N force is applied straight down, while the block displaces by 1.6 m. What is the blocks final speed? I also need to know how to apply the work-kinetic energy theorem to answer this question. I need some physics help, and I would really appreciate it!

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