Q. 10

Certain force acting on a 20 kg mass changes its velocity from 5 m s-1 to 2 m s-1. Calculate the work done by the force.

Answer :

Given,

Energy consumed = 250 units


= 250 kWh


We know that,


1 kilowatt-hour = 3.6 × 106 J


250 kilowatt-hours = 3.6 × 106 × 250


= 9 × 108 J

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Quiz | Lets Solve NumericalsQuiz | Lets Solve NumericalsQuiz | Lets Solve Numericals54 mins
Let's Calculate Workdone by a BodyLet's Calculate Workdone by a BodyLet's Calculate Workdone by a Body42 mins
Smart Revision | Let's Understand PowerSmart Revision | Let's Understand PowerSmart Revision | Let's Understand Power40 mins
Foundation | Let us Understand Law of Conservation of EnergyFoundation | Let us Understand Law of Conservation of EnergyFoundation | Let us Understand Law of Conservation of Energy44 mins
NCERT | Introduction to WorkNCERT | Introduction to WorkNCERT | Introduction to Work39 mins
NCERT | Energy and Its TypeNCERT | Energy and Its TypeNCERT | Energy and Its Type45 mins
Smart Revision | Master Work and Its ConceptsSmart Revision | Master Work and Its ConceptsSmart Revision | Master Work and Its Concepts47 mins
Introduction to WorkIntroduction to WorkIntroduction to Work40 mins
Foundation | Rapid Fire QuizFoundation | Rapid Fire QuizFoundation | Rapid Fire Quiz36 mins
Lets Master The NCERTLets Master The NCERTLets Master The NCERT46 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :