Question

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Answer 1

mv=12kgm/s

t=5s

f=20N

impulse = change in momentum

20/5 = mv(final) - mv(initial)

4  = mv - 12

mv(final)= 16kgm/s

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Answer 2

Answer:

mv - 12 kgm / s

t - 5 s

f - 20 N

impulse - change in momentum

20 / 5 - mv ( final ) - mv ( initial )

4 : mv - 12

mv ( final ) : 16 kgm / s

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