Question:

# The “lead” in pencils is a graphite composition with Young's modulus of approximately 1.0x10⁹ N/m². Calculate the change in length of the lead in an automatic pencil if you tap it straight into the pencil with a force of 5.6 N. The lead is 0.51 mm in

Last updated: 7/26/2022

The “lead” in pencils is a graphite composition with Young's modulus of approximately 1.0x10⁹ N/m². Calculate the change in length of the lead in an automatic pencil if you tap it straight into the pencil with a force of 5.6 N. The lead is 0.51 mm in diameter and 53 mm long. Round your answer to 5 decimal places.

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