Kinematics: Find xf with v0, x0, t

[Ryan Hwang]

Homework Statement

Given v₀=0 m/s, x₀=0 m, and t=10 s, use all three kinematic equations together to find x_f.

Homework Equations

v_f=v₀+at
x_f=x₀+v₀t+1/2at²
v_f²=v₀²+2a(x_f-x₀)

The Attempt at a Solution

The more I look at this, the less sense it makes. First off, I tried to plug the values into the first equation, but I don't have v_f or a. The second equation, I don't have an a. The last one, I don't have a _f nor acceleration. I can't see how I can solve this question without either the final velocity or acceleration.

 

[QuantumCurt]

I agree. This seems like an incomplete question. Is this out of a textbook? Is there a diagram or some other description in the heading for the section that provides more information? Is this something that is falling as a result of gravity?

 

[Ryan Hwang]

Nothing else is stated other than what is provided. It's actually a problem from a summer assignment that is due the first day of the semester. There's no other information in the header, as it just provides a brief overview of instructions for the section, which is "Algebra", and it basically covers all of physics, from kinematics to currents and circuits. It doesn't say that it's falling due to gravity, but if it were, then it would be solvable, but wouldn't require all 3 equations.

 

[Chestermiller]

They want the answer in terms of a.

Chet

 

[Ryan Hwang]

They want the answer in terms of a.

Chet

If that were the case, then it wouldn't require all three equations would it? Just the second one, no?

 

[Chestermiller]

If that were the case, then it wouldn't require all three equations would it? Just the second one, no?

Yes. You are not given enough info to do more.

 

[Ryan Hwang]

Yes. You are not given enough info to do more.

I agree. This seems like an incomplete question. Is this out of a textbook? Is there a diagram or some other description in the heading for the section that provides more information? Is this something that is falling as a result of gravity?

Thanks for all the help! :)