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Having displacemente, initial velocity and final velocity.

2006-11-04 06:42:33 · 6 answers · asked by racm_86 3 in Science & Mathematics Physics

6 answers

Using one of the equations of motion

(v*v) - (u*u) = 2*a*s

where
v is final velocity
u is initial velocity
a is accleration
s is displacement


OR
use

v * (dv / ds) = a

2006-11-04 06:54:22 · answer #1 · answered by Anshul Mittal 2 · 0 0

you can find acceleration without time using the following formulae:

v ^ 2 - u ^ 2 = 2 * a * s

where
v = final velocity
u = initial velocity
s = displacement
a = acceleration

2006-11-04 15:00:13 · answer #2 · answered by nfactor26 2 · 0 0

You DO have the time, given the average velocity and the displacement. Assuming a steady acceleration, you can find out how much time it took to travel that distance (displacement), then apply that to find out the acceleration needed to go from the starting to the ending velocity in that amount of time.

2006-11-04 14:53:46 · answer #3 · answered by DadOnline 6 · 0 0

The final kinetic energy is equal to the initial kinetic energy plus the work performed. Work is force times distance. Force is mass times acceleration. Mass can be eliminated from the equation, leaving you the equation someone else posted.

2006-11-04 15:08:07 · answer #4 · answered by arbiter007 6 · 0 0

Vf = Vi + at
d = Vi + 0.5at^2

2 equations and 2 unknowns. find a and t.

2006-11-04 15:05:42 · answer #5 · answered by Dr. J. 6 · 0 0

you can do that with out time i try ed that already

2006-11-04 14:45:30 · answer #6 · answered by Texas Boy 213 1 · 0 0

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