which one will faster?(adsbygoogle = window.adsbygoogle || []).push({});

consider two cases

case 1:A impulsePis applied to a point object of massm.velocity of center of mass isv_{1}

case 2:A impulsePis applied to one end of a rod of massmlengthl.velocity of center of mass isv(It will rotate also!!!)_{2}

NOTE: all the things are happening in frictional less horizontal plane so g will not matter.

which is greater v_{1}or v_{2}.

I think v_{1}

because in first case impulse givenPis responsible for only change in Linear momentum but in second case applied impulse is responsible for change in linear as well as angular momentum of rod.

I ask this question because there is a question in my book similar to case 2 and they ask velocity of center of mass of rod. If it is point object(as in case 1) then it is definitely [itex]\frac{P}{M}[/itex] but in case of rod i think it should smaller than [itex]\frac{P}{M}[/itex]. But how to calculate that?

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Angular momentum + linear momentum =confusion. HElp me?

**Physics Forums | Science Articles, Homework Help, Discussion**