Questions Q1. Steel bolts are used to hold the engine of a car in place. One of the steel bolts is stress tested. (i) The length of the bolt is 10.0 cm before testing. During the test when the work done on the bolt is 100 J, its length is 10.4 cm. Calculate the force applied to the bolt when its length is 10.4 cm. Use the equation work done in stretching = 1/2 F Ax Show your working. Z force applied = ............ (ii) Figure 3 shows the data from the stress test of the steel bolt