(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A student is pushing horizontally on a table (m=16 kg) to move it across a horizontal floor. The coefficient of kinetic friction between the table and the floor is 0.61.

a) Determine the magnitude of the applied force needed to keep the table moving at constant velocity.

b)If the applied force were 109N and the table were to start from rest, how long would the table take to travel 75 cm?

2. Relevant equations

F=ma

Fk =Uk |Fn|

Fn=mg

3. The attempt at a solution

I figured out part a) by substituting the mg for the Fn of the second equation. This helped me get the equation Fapp = Uk mg, to which I inputed all the correct values. I obtained an answer of 96 N. However, I do not know what equation to use for part b) or how to solve it. Any suggestions would greatly be appreciated. :)

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# Homework Help: Dynamics-Coefficients of Kinetic friction

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