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Simple Harmonic Motion on a moving platform 
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#1
Apr2512, 03:26 PM

P: 17

I had my physics midterm today and I totally blanked out. I want to know how to solve it for next time.
So In the picture, there are two springs connected to the mass on a platform. a) if the platform is at rest, find the angular frequency the expression for angular frequency is :ω=√(k/m), so I just added the two k's and plugged it into k and got :ω=√((k1+k2)/m). Is this correct? b)The platform then started to move in SHM with the equation d(t)=D*cos10∏t. We had to find the amplitude of mass M. This is where I tripped up and don't know how to solve it. Any ideas? 


#2
Apr2512, 03:33 PM

Sci Advisor
HW Helper
Thanks
P: 26,148

hi chrisy2012!
how would you prove it? 


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