Question

A 2 kg mass is tied to a string and is being swung in a horizontal circle. The mass has a constant angular velocity of 0.4 rad/s. The string has a Young’s modulus of 10 X 106 N/m2, and the string’s original length is 0.7 m long. The radius of the string is 0.05 cm. How much does the string stretch? You can think of the string as being shaped like a long, thin cylinder. Group of answer choices 5.6 mm 20.0 mm 3.8 mm 15.3 mm 24.7 mm

Answer 1