A student sits on a rotating stool holding two 5 kg objects. When his arms are extended horizontally, the objects are 1.

Business, Finance, Economics, Accounting, Operations Management, Computer Science, Electrical Engineering, Mechanical Engineering, Civil Engineering, Chemical Engineering, Algebra, Precalculus, Statistics and Probabilty, Advanced Math, Physics, Chemistry, Biology, Nursing, Psychology, Certifications, Tests, Prep, and more.
Post Reply
answerhappygod
Site Admin
Posts: 899604
Joined: Mon Aug 02, 2021 8:13 am

A student sits on a rotating stool holding two 5 kg objects. When his arms are extended horizontally, the objects are 1.

Post by answerhappygod »

A student sits on a rotating stool holding two 5 kg objects.When his arms are extended horizontally, the objects are 1.1 m fromthe axis of rotation, and he rotates with angular speed of 0.73rad/sec. The moment of inertia of the student plus the stool is 5kg m2 and is assumed to be constant. The student then pulls theobjects horizontally to a radius 0.34 m from the rotation axis. ωiωf (a) (b) Calculate the final angular speed of the student. Answerin units of rad/s. Calculate the change in kinetic energy ofthe system. Answer in units of J
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!
Top
Post Reply

Return to “Archived Questions & Answers”