A man pushes a lawnmower with a handle at an angle of 60°. He applies a constant 20 N force and moves the lawnmower a horizontal distance of 100 m in 5 min. What is the power of his efforts?

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A man pushes a lawnmower with a handle at an angle of 60°. He applies a constant 20 N force and moves the lawnmower a horizontal distance of 100 m in 5 min. What is the power of his efforts?