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A contestant in a winter games event pushes a 40.0 kg block of ice across a frozen lake

/in /by

Question

A contestant in a winter games event pushes a 40.0 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) Calculate the minimum force F he must exert to get the block moving.
_____________    N
(b) What is its acceleration once it starts to move, if that force is maintained?
_____________    m/s2

 
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