Force Calculations: Fnormal, Fg, Ffriction, Fapplied - SOLVED

In summary, the formula for calculating normal force (F<sub>normal</sub>) is F<sub>normal</sub> = mg, where m is the mass of the object and g is the acceleration due to gravity (9.8 m/s<sup>2</sup>). The formula for calculating gravitational force (F<sub>g</sub>) is F<sub>g</sub> = Gm<sub>1</sub>m<sub>2</sub>/r<sup>2</sup>, where G is the gravitational constant (6.67 x 10<sup>-11</sup> Nm<sup>2</sup>/kg<sup>2</sup>), m<sub
  • #1
Linday12
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[SOLVED] Force Calculations

If an object is being pushed horizontally, does Fnormal always equal Fg? And Ffriction only equals Fapplied if it's at a constant velocity? I think that's how it goes, but I'm a little unsure.

Thanks!
 
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  • #2
Yes if the force on an object is horizontal then the normal force will simply be the weight of the object. If it is on an incline then that's another matter altogether. Static friction equals the applied force to a certain point but kinetic friction is pretty much constant and proportional to the normal force.
 
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  • #3
Thanks.
 

FAQ: Force Calculations: Fnormal, Fg, Ffriction, Fapplied - SOLVED

What is the formula for calculating normal force?

The formula for calculating normal force (Fnormal) is Fnormal = mg, where m is the mass of the object and g is the acceleration due to gravity (9.8 m/s2).

How do you calculate gravitational force?

The formula for calculating gravitational force (Fg) is Fg = Gm1m2/r2, where G is the gravitational constant (6.67 x 10-11 Nm2/kg2), m1 and m2 are the masses of the two objects, and r is the distance between their centers of mass.

What is the formula for calculating frictional force?

The formula for calculating frictional force (Ffriction) is Ffriction = μFnormal, where μ is the coefficient of friction and Fnormal is the normal force.

How do you calculate applied force?

The formula for calculating applied force (Fapplied) is Fapplied = ma, where m is the mass of the object and a is the acceleration caused by the applied force.

What is the difference between static and kinetic friction?

Static friction is the force that resists the movement of two objects that are not moving relative to each other, while kinetic friction is the force that resists the movement of two objects that are already in motion. The coefficient of static friction (μs) is typically greater than the coefficient of kinetic friction (μk).

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