A contestant in a winter sporting event pushes a 45.0-kg block of ice across a frozen
Chapter 5, Problem 18(choose chapter or problem)
A contestant in a winter sporting event pushes a 45.0-kg block of ice across a frozen lake as shown in Figure 5.23(a). (a) Calculate the minimum force F he must exert to get the block moving. (b) What is the magnitude of its acceleration once it starts to move, if that force is maintained?
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