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Grade 11Mechanics

Three blocks of mass m, 2m and 3m are are kept on a table in a stack manner. m is at top, 2m is at middle and 3m is at bottom. What is the net contact force on 2m nass?

Profile image of Subhrajyoti Khuntia
7 Years agoGrade 11
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1 Answer

Profile image of MITUL JAIN
7 Years ago
Net force will be zero since the 3 masses will move with the constant velocity.When a force will be acting all three will move with the same velcity making the force constant.
                        F=ma
                         Since v=constant
                       Therfore a=0
                       F=m(0)
                       F=0