Question

When a cheerleader is thrown in the air and does a flip, while she is rotating she maintains her body in a stiff layout position. What is true about all points on her body during this flip? Select all that are true if more than one is true.

Group of answer choices

They all have the same angular acceleration.

They all have the same centripetal acceleration.

They all have the same linear speed.

They all travel the same number of radians over the course of the rotation.

They all have the same angular speed.

Answer 1

Linear velocity is given as v = r and linear acceleration is given as a = r, where and are angular velocity and angular acceleration respectively which remains constant for every part of the body but due to dependence on radius r, linear velocity and acceleration will not remain constant similarly centripetal acceleration will also not remain constant

Hence option first, fourth and fifth are correct.