Q 17.1 A 1.25 cm diameter cylinder is subjected to a load of 2500 kg. Calculate the stress on the bar in mega pascals?
Q 17.2 A 1.0 m long wire is subjected to stretching force and its length increases by 20 cm, Calculate the tensile strain and the percent elongation which the wire undergoes?
Q 17.3 A wire 2.5 m long and cross section are 10(-5) m(2) is stretched 1.5 mm by a force of 100 N in the elastic region. Calculate. (i) Strain (ii) Young’s Modulus (iii) The energy stored in wire = U =?
Q 17.4 What stress would cause a wire to increase in length by 0.01 % if the Young’s Modulus of the wire is 12 * 10(10) Pa. What force would produce this stress if the diameter of wire is 0.56 mm?
Q 17.5 The length of a steel wire is 1.0 m and its cross sectional area is 0.03 * 10(-4) m(2). Calculate the work done in stretching the wire where force of 100 N is applied with in the elastic region. Young’s Modulus of steel is 3 * 0 (11) Nm(-2).