If a net force of 25 N is exerted over a distance of 4 m on a 2 kg mass object and moves it, what is the final velocity?

1 Answer
Trevor Ryan.
Oct 17, 2015

10m//s

Explanation:

From Newton's 2nd Law of Motion,
sumvec F = m vec a

Hence the acceleration of the object under this constant resultant force is
a=(sumF)/m=25/2=12,5m//s^2

Now assuming the object started from rest, we may use an equation of motion for constant linear acceleration to get the final velocity :

v^2=u^2+2ax

therefore v=sqrt(0^2+2xx12,5xx4)=10m//s

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