What is a budget, and why should you have one?

A Budget is an estimate of income and expenditure for a set period of time. You should have one So you don't spend too much on whatever your doing.

Budget - an estimate of income and expenditure for a set period of time

and you need a budget because  it ensures that you will always have enough money for the things you need and the things that are important to you.

question answered by

(jacemorris04)

answer; /// first blank///one(1) foot; second blankfour(4) feet;

ek = (m·v2) / 2

v - velocity of system after the collision

m = m1 + m2

ek = (m1 + m2) ·v2/2

ek = (200 + 250) ·2,32/2 = 450·5,29/2 = 1190,25 j