Question

a force of 18 n acting on a certain mass for 3 seconds gives a velocity of 6 metre per second find the mass of the body in the body was initially at rest​

Answer 1

given

f= 18n

t = 3s

v = 6m/s

u = 0

m = ?

v=u+at

6=0+3a

6=3a

a=6/3

a=2m/s^2

f=ma

18=2m

m=18/2

m=9