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This is a modified version of a physics problem for my HW. We were to find the mass an item had to be to "go down" a slope and go up. However, the slopes were not even so a larger mass one side did not necessarily mean the "heavier" side slid down.

So I made another problem where they were even. In this case it was 60 degrees.

The slope is 60 degrees. The mass on the left F_{l}is 2.1 kg. My hypothesis is that a larger mass is required on the right to make the right "go down" or have a positive acceleration. Correct?

Here's my Force equation.

F_{total}= F_{l}+ F_{r}.

I picked a random number, .64 m/s2 for the right acceleration to be.

sin(60)(.64)m = (9.8)m + sin(60)(2.1kg)(-9.8)

which leads to m = 1.86 kg, which is obviously wrong!

Where did I go wrong? If I solve for a negative acceleration, I at least get a number less than 1.86 which makes logical sense at least. Any ideas on what I did wrong?

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# Homework Help: Objects on a Slope - Pretty Easy

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