The chapter Work, Power and Energy is very important topic from the viewpoint of UPSEE/UPTU Examination 2018. In this article we bring to you the complete chapter notes of chapter Work, Power and Energy including topics like work, work done by a variable force, conservation of Mechanical Energy, Potential Energy of a string, power etc. These chapter notes are prepared by Subject Expert and are based on the latest syllabus of UPSEE/UPTU Examination. These notes are in very concise form and can be used for quick revision before the examination. This article will definitely help you to score full marks in this topic in UPSEE/UPTU Examination 2018.
About the exam:
Uttar Pradesh State Entrance Examination (UPSEE) is a state level engineering entrance examination for degree level engineering institutions and other professional colleges. It is regulated by Dr. A.P.J. Abdul Kalam Technical University (AKTU) formerly known as Uttar Pradesh Technical University (UPTU).
Some important solved questions are given below:
A bus can be stopped by applying a retarding force F when it is moving with speed v on a level road. The distance covered by it before coming to rest is s. If the load of the bus increases by 50% because of passengers, for the same speed and same retarding force, the distance covered by the bus to come to rest shall be
(a) 1.5 s (b) 2 s
(c) 1 s (d) 2.5 s
Power supplied to a particle of mass 2 kg varies with time as P = 3t2/2 W. Here t is in second. If the velocity of particle at t = 0 is v = 0, the velocity of particle at time t = 2 s will be