In/13 n/136/2-1n(13)-le-1) 2) calcalate he worr required to Stretch 1.25 from h.eir cquilibrium posi tions, assuane Hooke'slawis obeyed a}4 spring that reauired 12o ĵOf work to be Stretched 6 .4m from its equilibriam position. a.l) setup aintegral that gluej the worle Åoee | q:2) The amucr t of wor reauires r spring Taat stretched o;2 m from ids 6.1) same as al? required a foree of 300 1obe equilibrinm ess ition han b.2) same awestion as a.27

In/13 n/136/2-1n(13)-le-1) 2) calcalate he worr required to Stretch 1.25 from h.eir cquilibrium posi tions, assuane Hooke'slawis obeyed a}4 spring that reauired 12o ĵOf work to be Stretched 6 .4m from its equilibriam position. a.l) setup aintegral that gluej the worle Åoee | q:2) The amucr t of wor reauires r spring Taat stretched o;2 m from ids 6.1) same as al? required a foree of 300 1obe equilibrinm ess ition han b.2) same awestion as a.27

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

Section6.6: Potential Energy Of A System

Problem 6.7QQ: A ball is connected to a light spring suspended vertically as shown in Figure 6.17. When pulled...

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When a body of mass 0.25 kg is attached to a vertical massless spring, it is extended 5.0 cm from its unstretched length of 4.0 cm. The body and spring are placed on a horizontal frictionless surface and rotated about the held end of the spring at 2.0 rev/s. How far is the spring stretched?
7. The potential energy of an elastic spring when elongated 12 cm is 3.5 Joule. Determinethe spring constant. What is the potential energy and force of the spring if its elongationis 10 cm?8. A 2 kg mass is attached to a spring. If the elongation of the spring is 4 cm, determine thepotential energy of the spring. What is the value of the spring constant? How much forceis required to elongate the spring by 5 cm?
2. Ahmed pulls a 20kg vacuum cleaner with a force of mgnitude 90N. the force makes an angle of 40 degree with the borizontal. The coiefficent of fricntion is 0.12.If the vaccum clear displaced 425cm in the horizontal dirction calaculate (11) The net net work done on the vaccum cleaner
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1) yes Is it possible to do work on an SBiect that remains at rest? 2) no
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Section 1: Fill in the blanks vwith either POTENTIAL or KINETIC to make the statements true 1. A bike moving down a hill has Lenergy. 2. A bike stopped at the top of a hill has energy. 8,8 3. An apple in a tree has energy. 4. An apple falling from a tree has energy. 5. A metal spring stretched out has energy. 6. A metal spring bouncing has energy. 7. If a light is on it has energy. 8. If a light is off it has energy. 9. A sleeping dog has Lenergy. 10. A dog jumping for a treat has energy.
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