3 75 A 20 kg block is originally at rest on a horizontal

Last updated: 6/11/2023

3 75 A 20 kg block is originally at rest on a horizontal surface for which the coefficient of friction is 0 6 If a horizontal force F is applied such that it varies with time as shown in figure 3 133 1 Determine the speed of the block in 10 s F Nt A 200 Figure 3 133 10 t s ii Determine the work done by this force in this duration iii Determine the work done by frictional force in this duration Ans 24 m s 14480 4 J 8720 4 J