Solution-Initial rotational kinetic energy of the system

Initial rotational kinetic energy of the system

Assignment Help Physics

Reference no: EM131477630

Suppose a friend is completing another physics assignment in their chair at their desk and you take the opportunity to turn this scenario into the physics question you now must complete. Your friend and chair have a combined constant moment of inertia of 5.1 kg m2, and the chair can freely rotate. Now your friend picks up two solid bricks (each of mass 1.8 kg) they accidentally collected from one of the campus buildings, and experiment with rotational kinematics. Supposing they hold the masses in each hand, arms outstretched, at distance of 0.7 m from their axis of rotation, and have an initial angular speed of 2.7 rev/s.

(a) Calculate the distance in m of each brick from your friendâs axis of rotation if they pull the bricks inward such that their rotational speed has increased to 3 rev/s.

(b) What is the initial rotational kinetic energy of the system?

(c) What is the final rotational kinetic energy of the system?

Reference no: EM131477630

Questions Cloud

Increased life expectancies : Public health has significantly increased life expectancies. Cite two examples of how public health informatics has impacted life

Explain importance of mis in relation to datadriven decision : Revise the previous proposal based upon the comments from your instructor. Explain the importance of MIS in relation to data-driven decisions.

What is the justification for viewing risk : What are the three general perspectives from which to evaluate risk in capital budgeting?

Initial speed of the ball : A football player punts the ball at a 45.0Âº angle. Without an effect from the wind, the ball would travel 60.0 m horizontally.

Initial rotational kinetic energy of the system : Calculate the distance in m of each brick from your friendâs axis of rotation if they pull the bricks inward such that their rotational speed has increased to 3

Create streamlined version of key elements of strategic plan : prepare a streamlined version of the key elements of a strategic plan. You require each employee to prepare the following sections of a strategic plan.

Calculate the location along the x-axis : Calculate the location along the x-axis ,in m, of the ball when it reaches the bottom of the hoop.

Why is project management so important in any field : Why is project management so important in any field? How can project management be applied to implement supply chain strategies?

Surface of a freshwater lake : The echo from the bottom of the lake returns to the point of origin 0.178 s later. The air and water temperatures are 20 oC. How deep is the lake?

User Account

All Pages

Initial rotational kinetic energy of the system

Reference no: EM131477630

Reference no: EM131477630

Questions Cloud

Reviews

Write a Review

Physics Questions & Answers

Find the magnitude of the resulting magnetic field

Find the equivalent resistance

What is the electric field at the location

What is the maximum displacement of the bridge deck

What is the magnitude of the current in the wire

Blackbody

Gravity conveyor

Calculate the dc voltage

Quadrupole moments in the shell model

Determine the tension in each string

Introductory mechanics: dynamics

Evaluate maximum altitude

Assured A++ Grade

Academics

Major Subjects

Majors

Get In Touch

TERMS & POLICIES

HELP & SUPPORT