Physics Help Forum Question No. 2

 Kinematics and Dynamics Kinematics and Dynamics Physics Help Forum

 Jun 11th 2017, 02:09 AM #1 Junior Member   Join Date: Apr 2017 Location: Turkey Posts: 15 Question No. 2 Hello again my friends Today i have another question , could any one help me to find the solution ? i will thankful for him . The question in the photo attached answer : 1.25 m / sec Thanks in advance and best regards Razi Attached Thumbnails
 Jun 11th 2017, 04:48 AM #2 Senior Member   Join Date: Aug 2010 Posts: 154 Have you calculated the components of the force on the mass on the inclined plane parallel to and perpendicular to the incline? The component parallel to the incline is equal to the vertical force on the other mass.
 Jun 11th 2017, 06:55 AM #3 Member     Join Date: Aug 2008 Posts: 57 conservation of energy ... $Mgx + \dfrac{1}{2}kx^2 = mgh + \dfrac{1}{2}(M+m)v^2$ $v = \sqrt{\dfrac{2g(Mx-mh)+kx^2}{M+m}}$ $x = 0.2 \, m$, $h = 0.2\sin(40^\circ) \, m$, $M=30 \, kg$, $m=20 \, kg$, and $k = 250 \, N/m$
 Jun 11th 2017, 07:27 AM #4 Junior Member   Join Date: Apr 2017 Location: Turkey Posts: 15 Dear friends Skeeter Thank you soooooooo much . Now , the question has solved . Best regards Razi

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