Impulse-Momentum Theorem and acceleration

  • Thread starter 92_stealth
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  • #1
Impulse-Momentum Theorem....

Homework Statement


So here's the problem:
a 3.00 kg object has velocity 7.00 j m/s. Then, a total force of 12.0i N acts on the object for 5 seconds.
A.Calculate the object's final velocity using the impulse momentum theorem.
b. calc its acceleration from a = (vf - vi) / delta t.
c. calculate its acceleration from a = F/m

Homework Equations


<given in question>

I really dont know what to use for impulse-momentum theorem in a? Any and all help is appreciated....
 

Answers and Replies

  • #2
LowlyPion
Homework Helper
3,090
4


Welcome to PF.

F = m*a = m*Δv/Δt

F*Δt = m*Δv = Δp

So in a, you have F and Δt. That gives you Δp
 

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