What is the Average Force Required to Climb a Slope at Constant Speed?

In summary, the conversation discusses a 79kg mass sliding down a slope of 57 degrees at a constant speed of 12km/h and how much average force is needed to climb the hill at the same speed. The equations Ef=ma and Ef=Fapp-Fgsintheta are mentioned, as well as Fapp=Fgx+Ffs and the unknown variable of mui in Ffs. The individual is unsure where to include the speed in the solution.
  • #1
wow22
31
0

Homework Statement



a 79kg mass can slide down a slope of 57 degrees at a constant speed of 12km/h/ how much average force must be abpplied to climb the hill at the same speed?

Homework Equations



Ef=ma
Ef=Fapp-Fgsintheta

The Attempt at a Solution



...ughm... kinda don't know how to start...?
but kk.. Fapp=Fgx+Ffs
but.. idk what mui is in Ffs...
so maybe.. Ffs = Fgx going down?

I don't know where to include the speed though...
 
Last edited:
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  • #2
Sorry, but forum rules state that we need to see an attempt at a solution first before we're allowed to help.
 
  • #3
lol woops :$
 

1. What is applied force?

Applied force refers to the force that is exerted on an object by another object. It is typically measured in units of newtons (N) and can be described as a push or pull on an object.

2. How is applied force calculated?

Applied force is calculated by multiplying the mass of an object by its acceleration. This is known as Newton's second law of motion, which states that force is equal to mass times acceleration (F=ma).

3. What is the difference between applied force and net force?

Applied force is the force that is exerted on an object, while net force is the total force acting on an object, taking into account all the individual forces acting on it. Net force takes into consideration the direction and magnitude of all forces, including applied force, to determine the overall effect on an object's motion.

4. How does applied force affect an object's motion?

Applied force can cause an object to accelerate, decelerate, or change its direction of motion. The magnitude and direction of the applied force will determine the resulting motion of the object.

5. Can applied force be negative?

Yes, applied force can be negative if it is acting in the opposite direction of the object's motion. For example, if a car is slowing down, the applied force of friction is acting in the opposite direction of the car's motion and is considered a negative force.

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