a 50 kg sack rice is being pulled by a farmer the force causes the sack to accelerate at 5m/s2 . calculate the net force that produced the acceleration
Force = mass * acceleration = 50*5 = 250N (This is on a horizontal surface and friction has not been taken into consideration)
You may like to look at this site.
http://library.thinkquest.org/10796/ch4/ch4.htm
+118654 
