Q.3: (20 PL.)Consider a system of mass m for which AU = 0, APE = 0, and Q = 0. Physically, this might correspond to asystem with constant internal energy, held at constant height, and with no heat exchanges with itssurroundings. For this system, the first law gives a balance between changes in kinetic energy and work. Inaddition, let us assume that a horizontal force F is accelerating the system as it acts through a distance in thex direction. Assume there is no friction force.F-mA. Prove that the work done on a body in accelerating it from an initial velocity (vi) to a final velocity (v) isequal to the change in kinetic energy of bodytB. Find the Power required (in KW), to accelerate a car from zero to 80 Km/h in 20 seconds on straight-line road? If the mass of a car is 900 kg?

work done = force ×displacement

Answered: rove that the work done on a body in…

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter3: The First Law Of Thermodynamics

Section: Chapter Questions

Problem 51P: A monatomic ideal gas undergoes a quasi-static process that is described by the function...

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rove that the work done on a body in accelerating it from an initial velocity (v) to a final velocity (v2) is qual to the change in kinetic energy of bodyt ind the Power required (in KW), to accelerate a car from zero to 8o Kmh in 20 seconds on straight- me road? If the mass of a car is 900 kg?