Question 16.1: A 1.50 cm length of pianos wire with a diameter of 0.25 cm is stretched by attaching a 10 kg mass to one end. How far is the wire stretched?

Question 16.2: A cable has a length of 12 m and is stretched by 1.2 x 10^-4 m when a stress of 8.0 x 10^8 Nm^-2 is applied. What is the strain energy per unit volume in the cable when the stress is applied?

Question 16.3: A cylindrical steel rod 0.50 m long and 1 cm in radius is subjected to a tensile force of 1 x 10^4 N. (a) What is the tensile stress? (b) What is the tensile strain? (c) By what amount does the rod stretch?

Question 16.4: A cable has a un-stretched length of 12 m and it stretches by 1.2 x 10^-4 m when a stress of 6.4 x 10^8 Nm^-2 is applied. What is the strain energy per unit volume in the cable when this stress is applied?

Question 16.5: Young’s Modulus for a particular wood is 1×10^10 Nm^-2. A wooden chair has four legs each of length 42 cm and cross sectional area 2×10^-3 m^2. Hamza has a mass of 100 kg. (a) What is the stress on each leg of the chair when Hamza stands on the chair? (b) By what …

Question 16.6: A force of 1.5 x 10^4 N causes a strain of 1.4 x10^-4 in a steel cable of cross-sectional area 4.8×10^-4 m^2. (a) What is the Young’s Modulus of the steel cable? (b) The stress strain graph is linear for this cable. Calculate the strain energy per unit volume stored in the cable …