Welcome Guest Search | Active Topics |

 EK 10th Ed. ICE 1 Question 2 Previous Topic Next Topic
 Bhawani #1 Posted : Friday, June 23, 2017 7:26:58 PM Rank: NewbieGroups: Registered Joined: 6/23/2017Posts: 0Thanks: 0 timesWas thanked: 0 time(s) in 0 post(s) To calculate acceleration, why does 100 need to be subtracted from 145 for the force? Back to top User Profile
 jaredenns #2 Posted : Saturday, June 24, 2017 7:13:28 PM Rank: InstructorGroups: Registered Joined: 6/9/2016Posts: 0Thanks: 0 timesWas thanked: 0 time(s) in 0 post(s) Hi there,According to Newton's Second Law, the acceleration is determined by the net force. So, if we are lifting the 10 kg disc with a force of 145 N, we still have to account for the object's weight, which points downward. An object's weight is the gravitational force on the object, equal to mass times 10 m/s^2. So, the weight of the disc is 100 N.Net Force = Force Up - Force Down = Force Applied - Weight = 145 N - 100 N = 45 NOnce we have net force, then we can solve for acceleration.Hopefully that clarifies things a bit.Cheers,Jared EnnsPhysics Instructor - MCAT Prep Back to top User Profile
 Users browsing this topic Guest (2)
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Clean Slate theme by Jaben Cargman (Tiny Gecko)
Powered by YAF | YAF © 2003-2009, Yet Another Forum.NET
This page was generated in 0.070 seconds.