(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

An experiment consists of pulling a heavy wooden block across a level surface with a spring force meter. The constant force for each try is recorded, as is the acceleration of the block. The data are shown below:

Force F in Newtons: 3.05 | 3.45 | 4.05 | 4.45 | 5.05

acceleration a in meters/second^2: 0.095 | 0.205 | 0.295 | 0.405 | 0.495

(The above is supposed to be a table where every force corresponds with a different acceleration.)

2. Relevant equations

ƩF=ma

F_f(friction force)=μN

3. The attempt at a solution

So I don't really what the constant force is here. Is it the spring force, and if it is, should I use the formula F=kx? Well, I drew the free-body diagram and I got a couple of things. In the vertical direction, there is no acceleration so the normal force N is equal to mg. In the horizontal direction, I got: [itex] \sum{F} = ma = F_s - F_f = F_s - (\mu)(N) = F_s - (\mu)(mg) \Rightarrow a = \frac{F_s}{m} - (\mu)(g). [/itex] Where do I go from here, and more specifically, how do I incorporate the table values into my solution?

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# Homework Help: An Experiment Consists of Pulling a Heavy Wooden Block Across a Level Surface

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