Q. 113.7( 10 Votes )

If the speed of a body is halved, what will be the change in its kinetic energy?

Answer :

Mass of the body, m = m

Velocity of the body, v =


Hence, the new kinetic energy,


= 1/2 (m × v2/4)


= 1/8 mv2


Hence, the Kinetic energy would be reduced to one fourth the actual one.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Let's Calculate Workdone by a BodyLet's Calculate Workdone by a BodyLet's Calculate Workdone by a Body42 mins
Quiz | Lets Solve NumericalsQuiz | Lets Solve NumericalsQuiz | Lets Solve Numericals54 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
Smart Revision | Master Work and Its ConceptsSmart Revision | Master Work and Its ConceptsSmart Revision | Master Work and Its Concepts47 mins
Quiz | Lets Solve the NumericalsQuiz | Lets Solve the NumericalsQuiz | Lets Solve the Numericals57 mins
Rapid Fire QuizRapid Fire QuizRapid Fire Quiz53 mins
Lakhmir Singh | Work,Energy and Power (Part-1)Lakhmir Singh | Work,Energy and Power (Part-1)Lakhmir Singh | Work,Energy and Power (Part-1)40 mins
Smart Revision | Rapid Fire Round on Work, Energy and PowerSmart Revision | Rapid Fire Round on Work, Energy and PowerSmart Revision | Rapid Fire Round on Work, Energy and Power44 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