ABSTRACT
D + 4d . Evaluate d when T = 10 and D = 32 (5)
19. The modulus of elasticity E is given by the formula E = FL
x A where F is force in newtons, L
is the length in metres, x is the extension in metres and A the cross-sectional area in square metres. Evaluate A, in square centimetres, when E = 80×109 N/m2, x =2mm, F=100×103N and L = 2.0m. (5)
For lecturers/instructors/teachers, fully worked solutions to each of the problems in Revision Test 4, together with a full marking scheme, are available at the website:
