Homework Help: Physics

Posted by Claire on Wednesday, October 27, 2010 at 1:48pm.

A helicopter has two blades (see figure), each of which has a mass of 220 kg and can be approximated as a thin rod of length 6.7 m. The blades are rotating at an angular speed of 45 rad/s. (a) What is the total moment of inertia of the two blades about the axis of rotation? (a) Determine the rotational kinetic energy of the spinning blades.

Physics - bobpursley, Wednesday, October 27, 2010 at 3:45pm
total moment inertia = 2* single rod I

http://en.wikipedia.org/wiki/List_of_moments_of_inertia

Answer this Question

Related Questions

Physics - During a rescue operation, a 5350 kg helicopter hovers above a fixed ...
Physics - During a rescue operation, a 5350 kg helicopter hovers above a fixed ...
College Physics - During a rescue operation, a 5600-kg helicopter hovers above a...
Physics - A long thin rod of mass M = 2:00 kg and length L = 75:0 cm is free to ...
Physics - A 4610 kg helicopter accelerated upwards at 2 m/s^2. What lift force ...
Physics- Angular Momentum - A long thin rod of mass M=2.00 kg and length L=75.0 ...
physics - A 1-kg mass (the blue mass) is connected to a 9-kg mass (the green ...
physics - A 1-kg mass (the blue mass) is connected to a 9-kg mass (the green ...
physics - A 1-kg mass (the blue mass) is connected to a 8-kg mass (the green ...
physics - A 1-kg mass (the blue mass) is connected to a 9-kg mass (the green ...

For Further Reading

First Name:
School Subject:
Answer: