Question
Asked Jan 30, 2020
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Suzie Lavtaski has reached the end of the ski slope and abruptly decelerates from 20 m/s to 4.56 m/s in 3.49 seconds. Determine Suzie's acceleration rate (in m/s2). (Note: your answer should be negative...) In a similar situation, Suzie Lavtaski abruptly decelerates at the end of a different ski run from 22.6 m/s to 3.73 m/s in 2.89 seconds. Determine the distance she moved (in m) during this braking period.

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Expert Answer

Step 1

Consider the first situation.

 

Consider the Suzie’s initial velocity be u1, her final velocity be v1, and time taken by her during deceleration be t1.

 

The given values are,

Physics homework question answer, step 1, image 1
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Step 2

Write the equation of motion, and solve for her acceleration (a1).

Physics homework question answer, step 2, image 1
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Step 3

Consider the second situation.

 

Consider the Suzie’s initial velocity be u2, her final velocity be v2, and time taken by...

Physics homework question answer, step 3, image 1
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Physics

Kinematics

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