Need to find velocity of an object I pushed off a table

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Homework Help Overview

The original poster describes a scenario involving a 100g object pushed off a table, detailing its horizontal and vertical motion after being released. The problem involves concepts from kinematics and friction, specifically focusing on calculating the object's initial speed as it leaves the table.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster considers using the distance traveled horizontally and the mass of the object to determine the force applied and subsequent acceleration. They express uncertainty about how to initiate the calculations and the relevance of the force exerted on the table. Another participant questions the necessity of knowing the height of the table for solving the problem.

Discussion Status

The discussion is ongoing, with participants exploring different aspects of the problem. There is a lack of consensus on the necessary information and methods to approach the calculations, indicating a productive exchange of ideas without a clear resolution yet.

Contextual Notes

The original poster mentions constraints related to upcoming quizzes and the absence of their tutor, which may impact their ability to seek immediate assistance.

Coronita
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1.
You push a 100g object across a table and release it 2 m from the edge. The object slides across, sails off the edge falls 1m to the floor and lands 30 cm from the edge of the table. If the coefficient of friction is 0.5 what was the object's speed as you released it?



2.
f=ma

Sf= Si+Vi* (delta)t+ 1/2a*(delta)t^2

Vf=Vi+a*t


3.

Since I know how far it went horizontally and I'm given the mass I'm thinking I should be able to find the force it was pushed with and use that to find the acceleration? Does knowing how much force it's exerting down on the table help me? Not really sure how to get started :/
 
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i have 2 physics quizzes this week and it would be the week my tutor's going to be out of town >_<
 
if anyone answers plese send it to me as a message, I am off to work now
 
Don't you need to know the height of the table?
 

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