A ship's wheel can be approximated as an annular cylinder (different from a ring) of mass 6.7 kilograms, inner radius 25 centimeters, and outer radius 32 centimeters; and eight spokes of mass 0.50 kilograms and length 49 centimeters.   a. What is the moment of inertia? Include units in your answer. More information.   b. Disagreeing over which way to go, the captain and the helmsman try to turn the wheel in opposite directions. The captain applies a force of 311 newtons at the inner radius, while the helmsman applies a force of 287 newtons at the outer radius. What is the magnitude of the angular acceleration of the wheel? Include units in your answer.

icon
Related questions
Question

A ship's wheel can be approximated as an annular cylinder (different from a ring) of mass 6.7 kilograms, inner radius 25 centimeters, and outer radius 32 centimeters; and eight spokes of mass 0.50 kilograms and length 49 centimeters.

 

a. What is the moment of inertia? Include units in your answer. More information.


 
b. Disagreeing over which way to go, the captain and the helmsman try to turn the wheel in opposite directions. The captain applies a force of 311 newtons at the inner radius, while the helmsman applies a force of 287 newtons at the outer radius. What is the magnitude of the angular acceleration of the wheel? Include units in your answer.

Expert Solution
Introduction:

We are given mass of wheel and inner and outer radius. We first find moment of inertia of the wheel.

The moment of inertia of annular cylinder is given as

I=12Mr12+r22

Here M,r1,r2 are mass and inner and outer radius respectively.

We then find the net torque on this wheel due to the forces and hence find angular acceleration.

steps

Step by step

Solved in 2 steps

Blurred answer