# What is impulse write an equation for impulse in

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1. What is impulse? Write an equation for impulse in terms of average force (F) and varying time ( t). t
2. What is momentum? Write an equation for change in momentum in terms of mass (m) and varying velocity ( v). v
3. Knowing that the impulse of an object is the equivalent of the object’s change in momentum, write an equivalent equation for impulse equals change in momentum in terms of average force, mass, varying time, final velocity (v f ), and initial velocity (v i ). v
4. Solve for average force, using the equation from #3, with all of the variables from #3 in the answer. v v v v
5. What is the equation for average acceleration in terms of change in velocity ( v) and varying time ( t)?
6. Now using equation from #4, solve for average force in terms of mass and acceleration. How does this relate to Newton’s 2 nd Law? Rewrite equation from #4 beginning with Newton’s 2 nd Law to yield the equation form #5.
7. Apply the equation from #3 to the egg being thrown into the sheet. Write this equation in terms of the egg. Label the variables and explain each in terms of the egg ( mass of egg , v initial of egg , F felt by egg , t for egg to stop ). Use this equation to explain why the egg did not break. If you wanted the egg to break, which two variables would you change and why? Keep all variables constant except the two you are changing to see how that variable affects whether the egg will break or not. So, the 4 variables are the mass of the egg, initial velocity of the egg, force felt by the egg, and the time it takes for the egg to stop. Notice that you can’t change the mass of the egg, or the maximum velocity (always the same) that you throw the egg with into the sheet. F