How To Find Initial Velocity Without Final Velocity

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Initial Velocity without acceleration given.

• Thread starter c0ld
• Start engagement Sep fourteen, 2009

Homework Statement

An antelope moving with constant acceleration covers the distance 74.0m between two points in fourth dimension 7.70s . Its speed every bit it passes the second bespeak is xiv.vi g/s.

Homework Equations

What is its speed at the get-go signal?

What is the acceleration?

The Try at a Solution

I dont know how to type in the formula in here any help? Im kinda confused on how to substitue the formula.

Answers and Replies

Hi c0ld

To type formula here, we use Latex. I don't know if at that place is a thread somewhere here about Latex tutorial, perchance you can use google.

About your question, the formulas for kinematics :

[tex]1) v = u+at[/tex]

[tex]two) south=ut+\frac{1}{ii}at^2[/tex]

[tex]3) five^2=u^2+2as[/tex]

5 = final speed
u = initial speed

Apply those formulas and yous'll observe the answer

What does s mean? Displacement?

Outset point should exist initial velocity. All the formulas you posted crave acceleration.

Last edited: Sep 14, 2009

Got the problem! It was ((2 * Displacement) / t) - final velocity

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