Calculate the angular momentum of the disc

Assignment Help Physics

Reference no: EM13500721

A child of mass 50.0 kg stands 2.00 m from the center of a horizontal circular disc of radius 4.00 m and mass 200 kg. The disc is mounted on a frictionless, vertical axis. Initially both the child and the disc are at rest. (Hint: so what is their combined initial angular momentum?) The child then begins to run in a counter clockwise direction. Shortly after the child starts running, it is observed that the disc attains a steady angular velocity of ? = -0.125rad/s in a clockwise sense. The moment of inertia of the flat disc is given by: I = 1/2 mR^2

Calculate the angular momentum of the disc (NOT the child) about the central vertical axis when the child has reached its steady (constant) tangential speed. Also calculate the steady tangential speed at which the child is running.

Reference no: EM13500721

Questions Cloud

What is the title of the position : What is the title of the position?

Find the vector torque of the wind force : The wind exerts on a flower the force 0.755 N horizontally to the east. Find the vector torque of the wind force about the base of the stem

Solve a spreadsheet model for the problem : Mathematically formulate a linear programming model for the problem and formulate and solve a spreadsheet model for the problem.

What are the forbes plant''s three biggest problems in rank : What are the Forbes plant's three biggest problems in rank order? Are they interrelated or mostly independent? Discuss.

Calculate the angular momentum of the disc : A child of mass 50.0 kg stands 2.00 m from the center of a horizontal circular disc of radius 4.00 m and mass 200 kg. The disc is mounted on a frictionless, vertical axis. Calculate the angular momentum of the disc

Explain how to develop a scheme to separate ag+ and mg2+ : Develop a scheme to separate Ag+, Mg2+, and Pb2+ cations in solution and draw a flow chart that depicts your scheme.

Find to what distance should the camera be focused : You are 3.20 m from a plane mirror, holding a camera, and you want to take a photograph of your image in the mirror. find To what distance should the camera be focused

Minimize the total operating cost : formulate a linear programming model for this problem. Define decision variables, and then define your constraints and objective function accordingly. Combine everything to get the final model.

How can the lessons of operations management : How can the lessons of operations management be used to increase the efficiency and effectiveness of service delivery to the customer?

User Account

All Pages