Calculate the amount of torque and power needed on an inclined plane

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Homework Help Overview

The discussion revolves around calculating the torque and power required to move a car uphill on a 30-degree inclined plane, starting from rest and reaching a specified final velocity within a time constraint of less than 10 seconds. Participants are exploring the relevant physics concepts related to forces, torque, and power in this context.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants have presented equations related to forces acting on the car, including gravitational components and friction. There are questions about the relevance of friction in the calculations and how it affects the torque and work done. Some participants are also seeking clarification on the equations associated with torque and power.

Discussion Status

The discussion is ongoing with participants attempting to clarify their understanding of the problem and the relevant equations. There is an emphasis on showing attempts and completing the equations section as per forum guidelines. Some guidance has been offered regarding the assumptions about friction and its impact on the calculations.

Contextual Notes

Participants are reminded of the forum rules that require showing attempts and completing the relevant equations section. There is a noted lack of information regarding friction, which is being questioned in the context of the problem.

babol2728
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Homework Statement
Calculate the amount of torque and power needed to move a car uphill
from rest on a 30-degree inclination and reach a certain final velocity in time
less than 10 seconds
Relevant Equations
car wheel radius = r
mass of car = m
initial velocity = 0
final velocity = v

Torque = Force x Radius
Power = Work/time = Force x Velocity = Torque x Angular Velocity
I have calculated the force equation on the x-plane which is f - mgsin(30) - friction force = ma
and from the equation vf = vi + at resulting a = v/10
 
Last edited:
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babol2728 said:
Homework Statement:: Calculate the amount of torque and power needed to move a car uphill
from rest on a 30-degree inclination and reach a certain final velocity in time
less than 10 seconds
Relevant Equations:: State in variables

Calculate the amount of torque and power needed to move a car uphill
from rest on a 30-degree inclination and reach a certain final velocity in time
less than 10 seconds
Per forum rules (Homework Help Guidelines for Students and Helpers) you must show some attempt.
Please also try to complete the Relevant Equations section. What equations have you been taught in connection with torque and power?
 
haruspex said:
Per forum rules (Homework Help Guidelines for Students and Helpers) you must show some attempt.
Please also try to complete the Relevant Equations section. What equations have you been taught in connection with torque and power?
I have corrected my post
 
babol2728 said:
I have calculated the force equation on the x-plane which is f - mgsin(30) - friction force = ma
and from the equation vf = vi + at resulting a = v/10
You are not told anything about friction, so ignore that.
From the above you can get an expression for the force. What torque does that lead to?
What total work is done?
 

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