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Home /Doubts and Solutions/CBSE/Class 11 Science/Physics/System Of Particles And Rotational Motion

# System Of Particles And Rotational Motion Free Doubts and Solutions

## What is the fractional decrease in kinetic energy of a body of mass

Asked by araima2001 2nd November 2016, 3:11 PM

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## Q)Two blocks A & B of masses m &2m respectively are connected together by a light spring of stiffness k & then placed on a smooth horizontal surface. The blocks are pushed towards each other such that spring gets compressed by a length  & then released from rest . Find the work done on the block A by the spring , by the time the spring acquires its natural length is : p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px 'Helvetica Neue'; -webkit-text-stroke: #000000} span.s1 {font-kerning: none}

Asked by araima2001 25th October 2016, 4:41 PM

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## Q)

Asked by araima2001 25th October 2016, 11:58 AM

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## Angular momentum is momentum in body when it is in circular motion,but here the particle is in the boundary of a square .Why we are using angular momentum here?

Asked by Vineeth K 5th April 2016, 12:21 PM

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## In HCl molecule, the separation between the nuclei of the H and Cl atom is 1.27 angstrom. If the mass of of Cl atom is 35.5 times of H atom , then obtain the centre of mass of the molecule.

Asked by s_patne2002 25th November 2015, 11:49 AM

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## A thin metal hoop of radius 0.25m and mass 2kg starts from rest and rolls down an inclined plane. Its linear velocity on reaching the foot of the plane is 4m/s. What is the rotational kinetic energy when it reaches the foot of the inclined plane?

Asked by k.manju2007 18th November 2015, 10:24 PM

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## Please tell how to study this chapter since NCERT does not provide clear understanding of this chapter.

Asked by Benjamin 13th October 2015, 5:30 PM

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## What is the angular velocity of second arm of a watch?

Asked by shubhi shrivastava 28th January 2015, 8:34 PM

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## Derive relation between torque and moment of inertia

Asked by Ibrahim Mohammed 23rd January 2015, 11:12 PM

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## A couple of 200 N m acts on a body to rotate it about an axis about which its moment of inertia is 1000kgm^2 . Find the angle through which the body rotates in first 10 sec

Asked by Drishya Subramanian 16th November 2014, 6:56 PM