SOLUTION: 5. a) A 70-Kg box is slid along the floor by a 400-N force. The coefficient of friction between the box and the floor is 0.50 when the box is sliding. Calculate acceleration of the
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-> SOLUTION: 5. a) A 70-Kg box is slid along the floor by a 400-N force. The coefficient of friction between the box and the floor is 0.50 when the box is sliding. Calculate acceleration of the
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Question 1161028: 5. a) A 70-Kg box is slid along the floor by a 400-N force. The coefficient of friction between the box and the floor is 0.50 when the box is sliding. Calculate acceleration of the box?
5. b) Suppose this box (70-Kg) is pulled by a 400-N force at an angle of 30 to the horizontal .
Find the X and the Y components.
5. c) Determine the acceleration of the box Answer by KMST(5328) (Show Source):
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a) Assuming a horizontal, level floor, the normal force (perpendicular to the surface, pressing the box into the floor) is
The horizontal friction force opposing the movement is
The net force on the box is
The box will accelerate in the direction of the 400N force.
The acceleration will be
b)
c) Now the normal force is
That will make the friction force opposing the movement
The net horizontal force acting on the box will be
Acting on a mass of 70kg, that net horizontal force will produce a horizontal acceleration of