Class 11PhysicsWork, Energy, Power and CollisionWork Energy Theorem and Conservation of Mechanical Energy
DifficultCorrect the following sentence: 'System cannot possess mechanical energy but possesses work.'
(N/A) The correct statement is: '$A$ system can possess mechanical energy but cannot possess work.'
Reasoning:
$1$. Energy is a state function,meaning it is a property of the system's state. Therefore,a system can possess internal energy or mechanical energy.
$2$. Work is a path function,not a state function. It represents energy in transit across the boundary of a system due to a force acting through a distance. $A$ system does not 'have' or 'possess' work; it performs work or has work done on it.
Reasoning:
$1$. Energy is a state function,meaning it is a property of the system's state. Therefore,a system can possess internal energy or mechanical energy.
$2$. Work is a path function,not a state function. It represents energy in transit across the boundary of a system due to a force acting through a distance. $A$ system does not 'have' or 'possess' work; it performs work or has work done on it.
Explore More
Similar Questions
State the principle of conservation of mechanical energy for a conservative force.
Difficult
View SolutionThe work-energy theorem is valid in the presence of:
Easy
View SolutionThe kinetic energies of two similar cars $A$ and $B$ are $100 \ J$ and $225 \ J$ respectively. On applying brakes,car $A$ stops after $1000 \ m$ and car $B$ stops after $1500 \ m$. If $F_{A}$ and $F_{B}$ are the forces applied by the brakes on cars $A$ and $B$,respectively,then the ratio $F_{A} / F_{B}$ is:
MediumNEET 2025
View Solution$A$ small sphere of mass $m$ and radius $r$ slides down the smooth surface of a large hemispherical bowl of radius $R$. If the sphere starts sliding from rest, the total kinetic energy of the sphere at the lowest point $A$ of the bowl will be [given, moment of inertia of sphere $= \frac{2}{5} mr^2$].
$A$ uniform chain of length $3\, m$ and mass $3\, kg$ overhangs a smooth table with $2\, m$ laying on the table. If $k$ is the kinetic energy of the chain in joules as it completely slips off the table,then the value of $k$ is (Take $g = 10\, m/s^2$).
DifficultJEE MAIN 2021
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo