- What do the values of ?s and ?k depend upon? - A 0.5-kg block is moving at con

Question

- What do the values of ?s and ?k depend upon?

- A 0.5-kg block is moving at constant speed on a horizontal surface. The friction force acting on the block is 20N, calculate ?k. (2 points) Show all the equations.

- If experimental data is normally distributed what percentage fits within (mean ? ? m ) which is a stand.dev.? What percentage of data that fits within

(mean ? 2? m )?

- In order for the force sensor to operate properly, what needs to be done before taking any measurements?

I. What do the values ofHs and depend upon? (2 points) 2. A 0.5-kg block is moving at constant speed on a horizontal surface. The friction force acting on the block is 20N, calculate k· (2 points) Show all the equations. 3. If experimental data is normally distributed what percentage fits within (mean ±.) which is a stand.dev.? What percentage of data that fits within (mean ±2%)? (2 points)

Explanation / Answer

2.

Ffriction = m * g * uk

Ffriction is given = 20 N

20 = 0.5 * 9.8 * uk

uk = 20 / 4.9

uk = 4

so the uk is 4

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