Impulses and Force


The answers are below:

Shouldn’t the impulse = 6.755 N*s and Force = 16.887 N ?

hi

i agree with you, linear momentum = impulse momentum
m * change v = F * change t
with change of v = 19-3,4 so impulse momentum = 6,75N

maybe i’m missing something, is there a difference between impulse momentum and impulse?

I really dont know the difference, if any, between impulse and impulse momentum; however, there are around 3 questions that I encountered and actually added up the initial anf final momentums to get the impulse which is in the answer key instead of subtracting them from each other to find how much “extra” momentum was given.

Isnt Impulse by definition the change in momentum though, this question does just say ‘impulse’?

Hi
Impulse is the change in momentum. In this one, the player give the additional momentum to the ball that’s why they are asking the impulse given to the ball.

Impluse given to the ball,

Initial momentum + final momentum of ball = (0.433 * 3.4)+ (0.433 * 19) = 9.699 N.s

Impluse = F . change in t
F = impluse/ change in t = 9.699/0.4 = 24.227 N

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