Finding out the horizontal force required to make an object move.

In summary, to determine the magnitude of the initial horizontal force required to make the ice fishing hut start sliding across the surface of the frozen pond, we need to know the static coefficient of friction between the hut and ice, as well as the weight of the hut. Without these values, we are unable to calculate the required force.
  • #1
DPXJube
12
0

Homework Statement


An ice fishing hut weighing 52 N sits on a dry, frozen lake.
What is the magnitude of the initial horizontal force required to make the ice fishing hut start sliding across the surface of the frozen pond



Homework Equations


μk = Fk/Fn or μs = Fs/Fn


The Attempt at a Solution


Find out Static Friction

Fnetx = FA + FS
Get rid of vectors so it rearranges to...
-FS + FA or FA - FS
See if m*a is equal to the Fnet
ma = -FS + FA
No mass or acceleration is given so I am unaware on how to discover the applied force which in turn would allow me to get the Static friction(max)
 
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  • #2
Welcome to PF.

No mass [...] is given
Are you not told the weight of the hut?

Note:
http://www.u-picardie.fr/~dellis/Documents/PhysicsEducation/The%20coefficient%20of%20friction.pdf [Broken]
... not sure how you are expected to find the coefficient of static friction: look it up?
 
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  • #3
The mass of the hut can be determined from its weight. But what is more important to know is the static coefficient of friction between the hut and ice. The hut will move and accelerate when the applied force exceeds the max static friction force. If the ice is considered frictionless, it'll move with the slightest breath.
 

1. How do you calculate the horizontal force required to make an object move?

The horizontal force required to make an object move can be calculated using the formula F = ma, where F is the force, m is the mass of the object, and a is the acceleration.

2. Does the surface affect the horizontal force required to make an object move?

Yes, the surface can affect the horizontal force required to make an object move. For example, a rough surface will require more force to overcome friction and move the object compared to a smooth surface.

3. Is the horizontal force required to make an object move always the same?

No, the horizontal force required to make an object move can vary depending on factors such as the mass of the object, the surface it is on, and the presence of any external forces.

4. How can the horizontal force required to make an object move be measured?

The horizontal force required to make an object move can be measured using a force sensor, such as a spring scale or a strain gauge. These devices can measure the amount of force applied to an object.

5. Can the horizontal force required to make an object move be reduced?

Yes, the horizontal force required to make an object move can be reduced by reducing the mass of the object, using a smoother surface, or by reducing friction through the use of lubricants.

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