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A contestant in a winter games event pushes a 38.0 kg block of ice across a frozen lake as shown in the figure below. 25° The coefficient of static friction is 0.1 and the coefficient of kinetic friction is 0.03. (For each answer, enter a number.) (a) Calculate the minimum force F (in N) he must exert to get the block moving. N (b) What is its acceleration (in m/s²) once it starts to move, if that force is maintained? m/s²

A contestant in a winter games event pushes a 38.0 kg block of ice across a frozen lake as shown in the figure below. 25° The coefficient of static friction is 0.1 and the coefficient of kinetic friction is 0.03. (For each answer, enter a number.) (a) Calculate the minimum force F (in N) he must exert to get the block moving. N (b) What is its acceleration (in m/s²) once it starts to move, if that force is maintained? m/s²

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A contestant in a winter games event pushes a 38.0 kg block of ice across a frozen lake as shown in the figure below. 25° The coefficient of static friction is 0.1 and the coefficient of kinetic friction is 0.03. (For each answer, enter a number.) (a) Calculate the minimum force F (in N) he must exert to get the block moving. N (b) What is its acceleration (in m/s2) once it starts to move, if that force is maintained? m/s²
Transcribed Image Text:A contestant in a winter games event pushes a 38.0 kg block of ice across a frozen lake as shown in the figure below. 25° The coefficient of static friction is 0.1 and the coefficient of kinetic friction is 0.03. (For each answer, enter a number.) (a) Calculate the minimum force F (in N) he must exert to get the block moving. N (b) What is its acceleration (in m/s2) once it starts to move, if that force is maintained? m/s²
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