Friday

March 6, 2015

March 6, 2015

Posted by **Tammy** on Friday, February 23, 2007 at 8:59pm.

1)What is the theoretical relationship between impulse and momentume change?

Would It be that Ft = the change in momentum?

2)Use the data from the first trial to show how impulse and momentum change were found.

M1= .05 kg where M2=.5026 kg, vi=0, vf=1.120, pi=0, pf=.6189, t=1.73s,

I have a question what would Force be given the above information? I know that gravity acted on it but how would I find force?

3) What impulse was imparted on M2 by the end of its run for the first trial?

i know that impulse is F*t but how would I find the impulse of M2 with the same information as above?

4) Is the force, F, really the net force that acted on the system? Please explain your answer.

I don't think that F is the only net force would friction be another force? Are there any other forces acting on it?

I really appreciate your help. Thank you so much for your time.

correct on 1). However, you have to be careful...both the mass and the trolley are changing momentum, so F*time= total change in momentum.

2) The force is gravity pulling on the 50 gram mass (Force= .050*g)

The impluse is .050*9.8*1.73

3)see above.

4) Friction is indeed a real force.

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