Answers

The Brainliest Answer!
2014-09-04T21:27:31+05:30
F=m(v-u)/t
So, 
12=m(v-u)/4
Hence,
m(v-u)=12*4=48kgm/s
So, mv-mu=48kgm/s
Therefore change in linear momentum of the body is 48kgm/s.
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2014-09-04T21:55:51+05:30
F = 12 N
t = 4 s
p = ?
F = m×( v - u ) / t
12 = m×v / 4
m×v = 12× 4
p = 48 kg m/s
Linear momentum will be 48 kg m/s.
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