where Δl is the change in length, F is the force, l is the initial length, γ is the young's modulus, and A is the cross-sectional area.
During a circus act, one performer swings upside down hanging from a trapeze holding another, also upside-down, performer by the legs. If the upward force on the lower performer is three times her weight, how much do the bones (the femurs) in her legs stretch? You may assume each is equivalent to a uniform rod 35.0 cm long and 1.80 cm in radius. Her mass is 60.0 kg.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Stress & Strain concept. If you need more Stress & Strain practice, you can also practice Stress & Strain practice problems.
What professor is this problem relevant for?
Based on our data, we think this problem is relevant for Professor Tsai's class at UCSD.