prove that moment of inertia is equal to 2*rotational Kinetic energy in
Answers
Answer:
Describe the differences between rotational and translational kinetic energy
Define the physical concept of moment of inertia in terms of the mass distribution from the rotational axis
Explain how the moment of inertia of rigid bodies affects their rotational kinetic energy
Use conservation of mechanical energy to analyze systems undergoing both rotation and translation
Calculate the angular velocity of a rotating system when there are energy losses due to nonconservative forces
So far in this chapter, we have been working with rotational kinematics: the description of motion for a rotating rigid body with a fixed axis of rotation. In this section, we define two new quantities that are helpful for analyzing properties of rotating objects: moment of inertia and rotational kinetic energy. With these properties defined, we will have two important tools we need for analyzing rotational dynamics.
Rotational Kinetic Energy
Any moving object has kinetic energy. We know how to calculate this for a body undergoing translational motion, but how about for a rigid body undergoing rotation? This might seem complicated because each point on the rigid body has a different velocity. However, we can make use of angular velocity—which is the same for the entire rigid body—to express the kinetic energy for a rotating object. Figure 10.5.1 shows an example of a very energetic rotating body: an electric grindstone propelled by a motor. Sparks are flying, and noise and vibration are generated as the grindstone does its work. This system has considerable energy, some of it in the form of heat, light, sound, and vibration. However, most of this energy is in the form of rotational kinetic energy.
Answer:
araiii yrr bhaii kaha naa ....joo bhii banu maii jiske bhi
but basss bigadana nii chte
orr kuch bhii hoo
but apne aap koo control Krna pdhta h
try to understand
mere parents ko jbb pta chlaga tbb kyaa hogaa
ye bhii socho