What is the horizontal force required to move a crate?
If the coefficient of kinetic friction between a 12.0 kg crate and the floor is .30, what horizontal force is required to move the crate at a steady speed across the floor? What horizontal force is required if the force of friction is zero?
Solution Preview
Newton's first law states that the total force applied to a body must be zero if the body is at rest or moving with constant velocity.
In this case we have to apply this law in both vertical and horizontal directions.
The forces applied on the obect are ...
Solution Summary
In the first case, the solution is found by applying Newton's first law in both vertical and horizontal directions.
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... Two forces can be resolved into components as shown in the ... so long as it is being forced to move... Net horizontal force on the crate = 330cos21O 195 = 113 N. ...
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... is not equal to the product the horizontal displacement and ... F cos θ will be the force responsible for ... the block has to stay there, the required force will be ...
... with a speed of 12 m/s approaches a horizontal spring ... Here is the forces diagram: For the crate not to slide ... θ ) fs ≥1 mg sin (θ ) The friction force is: fs ...
