Physics 7408: Mechanics and Materials Topical Past Paper Questions

A spring is compressed by a force $F$. The spring has stiffness $k$ and its length changes by $\Delta L$ during the compression. When the force is removed the spring returns to its original length in time $t$. What is the average power developed by the spring as it returns to its…

A stroboscope emits bright flashes of white light. The duration of each flash and the frequency of the flashes can be varied. Table 1 shows information about the stroboscope. Table 1 The duration of each flash is $ T_{1} $ The time from the start of a flash to the start of the ne…

Figure 5 shows a strip of steel of rectangular cross-section clamped at one end. The strip extends horizontally over the edge of a bench. Figure 5 end view of unloaded steel strip $ \underline{1} $ A mass m is suspended from the free end of the strip. This produces a vertical dis…