How can I solve 1-D kinematics problems with limited resources?

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Homework Help Overview

The discussion revolves around 1-D kinematics problems encountered in a 'Physics A' class. The original poster expresses uncertainty about the relevant equations needed to solve various kinematics scenarios, including acceleration, time to reach a certain speed, and the effects of braking distance.

Discussion Character

  • Exploratory, Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • The original poster seeks a list of basic equations related to motion under constant acceleration. They provide examples of problems involving take-off speed, free fall, and braking distance. Some participants suggest referring to textbook equations and share links to resources.

Discussion Status

The discussion is active, with participants providing guidance on where to find the necessary equations. The original poster acknowledges the assistance and expresses the challenge of lacking a textbook for reference.

Contextual Notes

The original poster notes the absence of a textbook due to school policy, which may limit their access to foundational resources for solving kinematics problems.

Imabur.
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Homework Statement


I have a problem worksheet for my 'Physics A' class. It deals with 1-D Kinematics, which we are just getting into so I am not very sure what equations I need to use. I'm not asking for someone to answer them for me, but to maybe give me a list of a few equations that would help me answer my problems.

A few examples that I have are:

An engineer is to design a runway to accommodate airplanes that must gain a ground speed of 61.0 m/s before they can take off. If these planes are capable of a uniform acceleration of 1.50 m/s2

a) how long will it take them to achieve take-off velocity;​
b) what must be the minimum length of the runway?​

OR

A stone is dropped from an airplane at an altitude of 4.90*102 m. The stone required 10.0 s to reach the ground. At what rete does gravity accelerate the stone?

OR

A driver of a car going 90.0 km/h N, suddenly sees the lights of a barrier 40.0 m ahead. It takes the driver 0.750 s to apply the brakes, and the maximum acceleration during braking is 10.0 m/s2 S. Determine if the car hits the barrier.

Homework Equations



I just need basic equations. How to find how long it will take something to fall, or how to find the acceleration or velocity.

The Attempt at a Solution



The only solutions I was able to find were the simple ones that I could do in my head.

Q. A boy walks 13.0 km in 2.0 h. What is his speen in km/h?

A. 6.5 km/h.

OR

Q. On a baseball diamond, the distance from home plate to the pitcher's mound is 18.5 m. If the pitcher is capable of throwing a ball at 38.5 m/s, how much time does it take a ball to reach home plate?

A. 0.481 s.
 
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Thank you, this helps out a lot. Yes, they would probably be in a textbook, but my shcool doesn't seem to think it's necessary to buy Physics textbooks, and the one worksheet with the basic equations that i needed is the one i seemed to lose. Since, I do not have a textbook to refer my work to, this seems like perfect forum to take part in.
 
You're welcome.

There's a 4th equation too, it results from equating the two expressions for vave in that link from post #2.

... my school doesn't seem to think it's necessary to buy Physics textbooks ...

Wow.
 

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