Reconsider the situation in Example 7.10. If Luis pulls straight down on the end of a wrench that is in the same orientation but is \(35 \mathrm{~cm}\) long, rather than \(20 \mathrm{~cm}\), what force must he apply to exert the same torque?

Transcribed Image Text:

EXAMPLE 7.10 Calculating the torque on a nut Luis uses a 20-cm-long wrench to tighten a nut, turning it clock- wise. The wrench handle is tilted 30 above the horizontal, and Luis pulls straight down on the end with a force of 100 N. How much torque does Luis exert on the nut? PREPARE FIGURE 7.22 shows the situation. The two illustrations correspond to two methods of calculating torque, corresponding to Equations 7.10 and 7.11.