Answer :

(a) Weight of the car (W) = 20000 N

Height = 120 m


Time taken (t) = 100 s


Work done by car = Force × displacement


= 20,000 × 120


= 2400000 KJ or 2.4 x 106J


(b) Power = work done/ time


= 2400000/100


= 24 KW


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Kinetic and Potential EnergyKinetic and Potential EnergyKinetic and Potential Energy39 mins
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
Lets Find the EnergyLets Find the EnergyLets Find the Energy46 mins
Lakhmir Singh | Work, Energy and PowerLakhmir Singh | Work, Energy and PowerLakhmir Singh | Work, Energy and Power38 mins
Smart Revision | Let us Calculate the EnergySmart Revision | Let us Calculate the EnergySmart Revision | Let us Calculate the Energy53 mins
Work and Types of Work doneWork and Types of Work doneWork and Types of Work done40 mins
NCERT | Introduction to WorkNCERT | Introduction to WorkNCERT | Introduction to Work39 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
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 :

Define power. GivLakhmir Singh & Manjit Kaur - Physics

An electric motorLakhmir Singh & Manjit Kaur - Physics

How many watts eqLakhmir Singh & Manjit Kaur - Physics

Name two units ofLakhmir Singh & Manjit Kaur - Physics

What is power? HoNCERT Science - Exemplar

(a) State and defTogether with Science

Two bulbs of 40W Together with Science

Write true or falEvergreen - Science