A smooth sphere A is moving on a frictionless horizontal plane wi… - Vidyadip

Question

A smooth sphere $A$ is moving on a frictionless horizontal plane with angular speed $\omega $ and center of mass with velocity $v$. It collides elastically and head-on with an identical sphere $B$ at rest. Neglect friction everywhere. After the collision, their angular speeds are ${\omega _A}$ and ${\omega _B}$ respectively. Then

✓

Answer

As the spheres are smooth there will be no friction (no torque) and therefore there will be no transfer of angular momentum. Thus $\mathrm{A}$, after collision will remain with its intial angular momentum $i . e ., \omega_{A}=\omega$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

A body of mass $3\, kg$ is under a constant force which causes a displacement $s$ in metres in it, given by the relation $s=$$\frac{1}{3}{t^2}$ , where $t$ is in seconds. Work done by the force in $2$ seconds is

A student obtained following observations in an experiment of meter bridge to find the unknown resistance of the circuit The most accurate value of unknown resistance is ............ $\Omega$

S.No.	$R$	$l$	$100-l$	$S = \left( {\frac{{100 - l}}{l}} \right)R$
$1$	$20\,\Omega $	$43$	$57$	$26.51\,\Omega $
$2$	$30\,\Omega $	$51$	$49$	$28.82\,\Omega $
$3$	$40\,\Omega $	$59$	$41$	$27.80\,\Omega $
$4$	$60\,\Omega $	$70$	$30$	$25.71\,\Omega $

In helium nucleus, there are

Energy of $10$ non rigid diatomic molecules at temperature $\mathrm{T}$ is :

Measure of two quantities along with the precision of respective measuring instrument $A = 2.5\,m{s^{ - 1}} \pm 0.5\,m{s^{ - 1}}$, $B = 0.10\,s \pm 0.01\,s$ The value of $AB$ will be

Dependence of intensity of gravitational field $(E)$ of earth with distance $(r)$ from centre of earth is correctly represented by

A car is moving along a straight horizontal road with a speed ${v_0}$. If the coefficient of friction between the tyres and the road is $\mu $, the shortest distance in which the car can be stopped is

No current flows between two charged bodies connected together when they have the same

If the breaking force for a given wire is $F$, then the breaking force of two wires of same magnitude will be

The kinetic energy of a body moving along a straight line varies with time as shown in figure. The force acting on body