Question

Change in linear momentum is given by

Answer 1

ma
where m=mass and a=aceleration

Answer 2

Thanks for asking this question let me help in finding the answer .
Linear momentum is actually equal product of total mass and velocity of system or object . So linear momentum affected by both of these factors. Any one change directly cause the change in linear momentum . Mass is represented by "m" while the velocity by "v". On the other hand linear momentum usually represented by "p".
 So the linear momentum equals m*v .