Question

On an object of mass 1 kg moving along x axis with constant speed 8m/s , a constant forse 2n is applied in positive y direction find the speed after 4 second

Answer 1

m=1kg
u=8m/s
F=2N
t=4s
V=?
We know that,
F=ma
a=F/m=2m/s2
v=u+at=8+2*4
=16m/s