Question

part ii of question number 6

Answer 1

P=m multiplies v.Where the velocity is 15 then the mass is 2,Multiply you will get 30 kg ms^-1

Answer 2

F=10N , m=2kg , t=3s ,u=0ms^-1

F=ma
10=2a
a=5ms^-2

v=ut+at
v=0t+5*3v=15ms^-1

Change in momentum=mv-mu
=m(v-u)
=2(15-0)
=30kgms^-1