Homework Help: Physics

Posted by sarah on Tuesday, November 10, 2009 at 1:25pm.

A 4kg block, initially moving due east at 3 m/s, is acted upon by an impulse having magnitude 8Ns and direction due west. Is the final velocity of the block 2m/s west? This is how I came to that answer:

v = impluse/mass so 8/4 = 2.

Although this is the change in velocity does it act as the final velocity?

Physics - bobpursley, Tuesday, November 10, 2009 at 3:05pm
Finalmomentum=initialmomentum+impulse
mVf=12E-8NsE=4E
vf=1m/s E
Physics - sarah, Tuesday, November 10, 2009 at 3:22pm
Thanks for the help!!

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