Ppl i am just 14 and am tryin to make a car and i am having problems

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Homework Help Overview

The original poster is attempting to design a car and is exploring the physics involved in calculating its capabilities, specifically regarding how steep a slope it can ascend. The discussion involves basic principles of physics related to weight, force, and energy.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • The original poster provides various assumptions about the car's weight and performance metrics, then poses a specific question about the slope the car can navigate. Some participants suggest calculating the thrust at the wheels and using trigonometric relationships to determine the maximum slope.

Discussion Status

Participants are engaging in a dialogue where guidance is offered on how to approach the problem, including relevant formulas and concepts. However, there is no explicit consensus or resolution regarding the original poster's question.

Contextual Notes

The original poster indicates a limited understanding of certain physics concepts, such as trigonometric functions, which may affect their ability to apply the suggested methods. There is also a repeated request for assistance in finding a solution.

saarthak007
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ppl i am jus 14 and tryin to make a car
the amount of physics i no is a bit less
i started calculating
by assuming:-
car weight = 50kg
passenger weight 50 kg
propultion system weight =5okg
total weight =150 kg
speed 20km/h = 5.5m/s
i am taking =5 m/s approx
time taken= 10 sec
acceleration =0.5m/s2
force =150 x 0.5=75 Newton
energy =1875juoles = 1.875kj
power = 187.5 watt
my question is that **"how much slope can it move on??"**
coz i don't no cos tan sin
 
Last edited:
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saarthak007 said:
ppl i am jus 14 and tryin to make a car
the amount of physics i no is a bit less
i started calculating
by assuming:-
car weight = 50kg
passenger weight 50 kg
propultion system weight =5okg
total weight =150 kg
speed 20km/h = 5.5m/s
i am taking =5 m/s approx
time taken= 10 sec
acceleration =0.5m/s2
force =150 x 0.5=75 Newton
energy =1875juoles = 1.875kj
power = 187.5 watt
my question is that **"how much slope can it move on??"**
coz i don't no cos tan sin

ppl reply i need ur help
 
Formatting and full comprehensive sentences are your friend.

You need to know the thrust at the wheels.

Found from engine torque * gear ratio * rolling radius.
This will give you the max force available at the wheels.

F = mg sin theta

Run for a range of theta, and you can find the max slope you can get up.
or rearrange or theta and work it out with arcsin (I don't know if you will have learned that at 14)
 
Last edited:
xxChrisxx said:
Formatting and full comprehensive sentences are your friend.

You need to know the thrust at the wheels.

Found from engine torque * gear ratio * rolling radius.
This will give you the max force available at the wheels.

F = mg sin theta

Run for a range of theta, and you can find the max slope you can get up.
or rearrange or theta and work it out with arcsin (I don't know if you will have learned that at 14)

hey can u find it for me i am havin problem
 
I can't find it for you, I have told you how to find it though.
 

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