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Can someone help me on this as physics question please

Am I correct in doing this: 2.5kg / 1, so the velocity is 4ms. So to get the change in momentum over time we just do the mass which is 2.5 and times it by 4 assuming that the initial velocity was zero at time 0?

Reply 1

philogrobized

Original post by GogetaORvegito?

I believe that would be the correct working - so yes.

Reply 2

GogetaORvegito?

Original post by philogrobized

I believe that would be the correct working - so yes.

Alright thanks

Reply 3

Squirmz

Yes. This is the working I would use to avoid issues with units:
F=ma=m x (v-u)/t --> from v=u+at
F=2.5 x (4-0)/1

Assuming that acceleration is constant.
:-)

Reply 4

GogetaORvegito?

Original post by philogrobized

I believe that would be the correct working - so yes.

Alright thanks

Original post by Squirmz

Yes. This is the working I would use to avoid issues with units:
F=ma=m x (v-u)/t --> from v=u+at
F=2.5 x (4-0)/1

Assuming that acceleration is constant.
:-)

Yeah I just was second guessing myself because I thought I was wrong to assume the initial velocity was 0.