Question

A force of 15 n acts for 5 sec on a body pf mass 5. kg which is initoally at rest find final velocity

Answer 1

$F=ma \\ a= \frac{F}{m} = \frac{15}{5}=3m/ s^{2} \\ v=u+at \\ u=0m/s , a=3m/ s^{2} , t=5s \\ v=3\times5=15m/s$