Answers

2016-05-05T06:24:35+05:30
Solutions  

F = Mass X Acceleration
Where F directly proportional to rate of change of momentum 
F is proportional to (v-u) / t

If we are removing the proportional then there would be a constant added lets assume the constant as K

F=k(v-u/t) 

k is constant so k=1
momentum=mv
f=k(-u/t)mv
f=mk(v-u/t)  since v-u/t =a
f=kma where k is constant
f=ma
1 3 1