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

I need to know the force of a falling object.

m=1.502 kg

v=0.528 m/s (this value is way off from the theoretical which is .9598 m/s)

Duration of impact = 0.167 s

I have all the variable but my problem is this:

This falling object compresses a spring which needs a force of 21 N to compress. From my experiment, the spring compresses but the calculation doesn't work out. This could be just experimental error but I don't think the margin of error should be this big.

2. Relevant equations

F=m∆V/∆t

3. The attempt at a solution

F=((1.5025)(0-0.528))/0.167

F=4.75 N [down]

F=ma

F_g=(1.5025)(9.8)

F_g=14.7245 N [down]

F_e=kx

F_e=(512)(0.041)

F_e=20.992 N [up]

I was also wondering if you add the two downward forces together. If that is true, then the force using my theoretical value would be correct.

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# Homework Help: Force of a falling object

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