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A person pushes a box across a horizontal surface at a constant speed of 05 meter per second The box has a mass of 40 kilograms and the coefficient of sliding friction is 025 The power supplied

A person pushes a box across a horizontal surface at a constant speed of 0.5 meter per second. The box has a
mass of 40 kilograms, and the coefficient of sliding friction is 0.25. The power supplied to the box by the
person is (A) 0.2 W (B) 5 W (C) 50 W (D) 100 W (E) 200 W
29. A horizontal force F is used to pull a 5-kilogram block across a floor at a constant speed of 3 meters per second.
The frictional force between the block and the floor is 10 newtons. The work done by the force F in 1 minute is
most nearly
(

Jun 21 2020 View more View Less

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