In a laboratory model of cars skidding to a stop, data is collected on blocks sliding across a table as each comes to rest. The stopping distance for each block is measured after it has been launched with some initial speed. Experiments are performed on four blocks, each with mass m = 7 kg. The coefficient of kinetic friction and the initial speed of each block was as follows: a) Block 1: µz = 0.2 , v¿ = 2 m/s b) Block 2: µk = 0.2 , vị = 4 m/s с) Block 3: Иk d) Block 4: µk = 0.4 , vị = 4 m/s Calculate the stopping distance for each block. Note that you can use either energetics (conservation of energy) or kinematics (forces) to answer this question. Try both! 0.4 , vį = 2 m/s

In a laboratory model of cars skidding to a stop, data is collected on blocks sliding across a table as each comes to rest. The stopping distance for each block is measured after it has been launched with some initial speed. Experiments are performed on four blocks, each with mass m = 7 kg. The coefficient of kinetic friction and the initial speed of each block was as follows: a) Block 1: µz = 0.2 , v¿ = 2 m/s b) Block 2: µk = 0.2 , vị = 4 m/s с) Block 3: Иk d) Block 4: µk = 0.4 , vị = 4 m/s Calculate the stopping distance for each block. Note that you can use either energetics (conservation of energy) or kinematics (forces) to answer this question. Try both! 0.4 , vį = 2 m/s

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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Concept explainers

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.

Question

In a laboratory model of cars skidding to a stop, data is collected on blocks sliding across
a table as each comes to rest. The stopping distance for each block is measured after it
has been launched with some initial speed. Experiments are performed on four blocks,
each with mass m = 7 kg. The coefficient of kinetic friction and the initial speed of each
block was as follows:
a) Block 1: Hx = 0.2 , vị = 2 m/s
b) Block 2: µk = 0.2 , Vị = 4 m/s
c) Block 3: µz = 0.4 , v; = 2 m/s
d) Block 4: Hx = 0.4 , vị = 4 m/s
Calculate the stopping distance for each block. Note that you can use either energetics
(conservation of energy) or kinematics (forces) to answer this question. Try both!

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