Acompressive force of 2.7×104n is exerted on the end of a 23-cm-long bone of cross-sectional area 3.8 cm2 . the elastic modulus for bone is 1.5×1010n/m2, and the compessive strength for bone is 1.7×108n/m2.

Question

By how much does it shorten?

1.089 mm

Explanation:

Compression stress, is given by

where F is force and A is area

Strain is given by

where L is original length and \triangle l is change in length

Young's modulus, hence