Posted by San on Saturday, January 5, 2013 at 3:05pm.
A force of 3.0 newtons applied to an object produces a change in velocity of 12 meters per second in 0.40 second. the mass of the object is?
I am not sure how to solve this problem. Formula for momentum is
p= mass times velocity
impulse (J) = Fnet times time in seconds

Physics  drwls, Saturday, January 5, 2013 at 3:10pm
Since F = M*a, use
M = F/a
The acceleration (a) is (V2V1)/t
= 12/0.4 = 30 m/s^2
M = 3.0/30 = 0.10 kg.

Physics  San, Saturday, January 5, 2013 at 3:12pm
Oh. That was quite straight forward. Thank you.
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