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A steel cable,by which an elevator of mass 800kg is suspended,has diameter of 2 cm.The unstretched length of the suspension cable is 10 m when the elevator is on the top floor of the building.The first floor is 50 m below the top floor. Find the values of extension in cable when the elevator is on the top and first floor. Ysteel=2×10¹¹ N/m²(g=9.8m/s²). |
| Answer» A steel cable,by which an elevator of mass 800kg is suspended,has diameter of 2 cm.The unstretched length of the suspension cable is 10 m when the elevator is on the top floor of the building.The first floor is 50 m below the top floor. Find the values of extension in cable when the elevator is on the top and first floor. Ysteel=2×10¹¹ N/m²(g=9.8m/s²). | |