A 20 kg mass is sitting on the horizontal surface of a table top. Calculate the following Neglecting friction, calculate the force required to give the mass a velocity of 2ms. So far all I can think of is... F=ma m=20kg a=? a= Vf-Vi / t ..... im stuck ... all I can think of is F = mv (velocity being constant therefore its not accelearting? ) F = 20 kg x 2ms/ = 40Nm (j) ?