2. A 5.75-kg object passes through the origin at time t = 0 such that its x component of velocity is 5.00 m/s and its y component of velocity is -3.00 m/s. (a) What is the kinetic energy of the object at this time? (b) At a later time t = 2.00 s, the particle is located at x = 8.50 m and y = 5.00 m. What constant force acted on the object during this time interval? (c) Using the work-kinetic energy theorem, find the speed of the particle at 1 = 2.00 s.

2. A 5.75-kg object passes through the origin at time t = 0 such that its x component of velocity is 5.00 m/s and its y component of velocity is -3.00 m/s. (a) What is the kinetic energy of the object at this time? (b) At a later time t = 2.00 s, the particle is located at x = 8.50 m and y = 5.00 m. What constant force acted on the object during this time interval? (c) Using the work-kinetic energy theorem, find the speed of the particle at 1 = 2.00 s.

Name: 2. A 5.75-kg object passes through the origin at time t = 0 such that
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Description: 2. A 5.75-kg object passes through the origin at time t = 0 such that its x component of velocity is5.00 m/s and its y component of velocity is -3.00 m/s.(a) What is the kinetic energy of the object at this time?(b) At a later time t = 2.00 s, the p

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter6: Energy Of A System

Section: Chapter Questions

Problem 37P

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Check Your Understanding There is a second solution to the system of equations solved in this example (because the energy equation is quadratic): v1.f=-2.5m/s , v2.f=0 . This solution is unacceptable on physical grounds; what’s with it?