InterviewSolution
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InterviewSolution
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Figure shows a smooth curved track terminating in a smooth horizontal part. A spring of sprng constant 400 N/m is asttached at one end ot a wedge fixed rigidly with the horizontal part. A 40 g mas is released from rest at a height of 4.9 m n the curved track. Find the maximumcompression of the spring. |
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Answer» At the instant of maximum compressin the speed of the 40 g mass reduces to zero. Taking the gravitatioN/Al potential energy to be zero at the horizontal part the conservation of energy shows, `mgh=1/2kx^2` where m=0.04 k, h=4.9 m, k=400 N/m and x is the maximum compression. Thus, `x=(sqrt(2mgh))/k` `=(sqrt(2xx(0.04kg)xx(9.8m/s^2)xx(4.9m)/((400N/m)))` `9.8cm` |
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