A contestant in a winter games event pulls a 30.0 kg block of ice across a frozen lake with a rope over his shoulder as shown in Figure 4.29 (b). The coefficient of static friction is 0.1 and the coefficient of kinetic friction is 0.03. (a) (b) Figure 4.29 (a) Calculate the minimum force F he must exert to get the block moving. (b) What is its acceleration once it starts to move, if that force is maintained? m/s2
