A block of mass 5 kg is (i) pushed in case (A) and (ii) pulled in case (B), by a force F=20N, making an angle of with the horizontal, as shown in the figures. The coefficient of friction between the block and floor is . The difference between the accelerations of the block, in case (B) and case (A) will be :
Newton's 2nd Law -
in C.G.S & S.I
Force can be defined as rate of change of momentum.