A contestant in a winter sporting event pushes a 45.0-kg block of ice across a frozen lake
Question:
A contestant in a winter sporting event pushes a 45.0-kg block of ice across a frozen lake as shown in Figure 5.21(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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