**Kinetic Energy and Work Problems****Equation:**- \( W_{\text{net}} = \frac{1}{2}m(v_f)^2 - \frac{1}{2}m(v_i)^2, \quad W_{\text{net}} = \sum_i W_i , \quad W = Fd \cos \theta \)**Problem 1:**A 2.0 kg box slides on a floor. A friction force of 5.0 N opposes the motion. If the box starts with a speed of 5.5 m/sec, how far does it slide before coming to rest? *Answer:* \( d = 6.1 \, \text{m} \)**Problem 2:**What is the force a 60.0 kg sprinter exerts backward on the track to accelerate from 2.00 m/sec to 8.00 m/sec in a distance of 25.0 m, if they encounter a wind that exerts an average force of 30.0 N against them?*Hint:* \( W_{\text{net}} = W_{\text{runner}} - W_{\text{wind}} \)*Answer:* \( F_{\text{runner}} = 102.0 \, \text{N} \)**Problem 3:**A 500-kg dragster accelerates from rest to a final speed of 110 m/sec in 400 m (about a quarter of a mile) and encounters an average frictional force of 1200 N. What is the work done by the dragster? *Hint:* \( W_{\text{net}} = W_{\text{dragster}} - W_{\text{friction}} \)*Answer:* \( W_{\text{dragster}} = 3.5 \times 10^6 \, \text{J} \)

Name: **Kinetic Energy and Work Problems****Equation:**- \( W_{\text{net}}
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Description: **Kinetic Energy and Work Problems****Equation:**- \( W_{\text{net}} = \frac{1}{2}m(v_f)^2 - \frac{1}{2}m(v_i)^2, \quad W_{\text{net}} = \sum_i W_i , \quad W = Fd \cos \theta \)**Problem 1:**A 2.0 kg box slides on a floor. A friction force of 5.0 N

Mass of box, Friction force on the box, The initial speed of…

Answered: Problem 1: A 2.0 kg box slides on a…

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Problem 1: A 2.0 kg box slides on a floor. A friction force of 5.0 N opposes the motion. If the box starts with a speed of 5.5 m/sec, how far does is slide before coming to rest? Answer: d = 6.1 m

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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