How to calculate the ratio of weight?

In summary, the problem involves two bodies connected by linear actuators and subject to frictional forces. The question is how to calculate the ratio of their masses given that their combined movement must cover a specified distance. The solution involves writing out the equations Ftotal=ma for each body and solving for the mass ratio.
  • #1
asteorit
15
0

Homework Statement


Two body move apart by force. Frictional forces are considering. How to calculate the ratio of weight?
m1<m2
Ft1=k*g*m1
Ft2=k*g*m2

Homework Equations


v1(t1)=[itex]\frac{F_{t1}-F}{m_{1}}[/itex]*t[itex]_{1}[/itex]
x1(t1)=[itex]\frac{F_{t1}-F}{m_{1}}[/itex]*[itex]\frac{t^{2}_{1}}{2}[/itex]

v2(t1)=[itex]\frac{F-F_{t2}}{m_{2}}[/itex]*t[itex]_{1}[/itex]
x2(t1)=[itex]\frac{F-F_{t2}}{m_{2}}[/itex]*[itex]\frac{t^{2}_{1}}{2}[/itex]

What is the procedure of calculation.
Thank you for your help.
 

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  • #2
welcome to pf!

hi asteorit! welcome to pf! :smile:

sorry, but i don't understand the set-up :redface:

what is the connection between these two bodies?
 
  • #3


tiny-tim said:
hi asteorit! welcome to pf! :smile:

sorry, but i don't understand the set-up :redface:

what is the connection between these two bodies?

Hi tiny-tim,

These two bodies are connected by linear actuators. Force F of the linear actuator, will act on both the bodies. We know that the bodies should move along the path L, L=x1(t1)+x2(t1). We know that m1<m2.
If I assume correctly, and the trajectory of bodies depends on the mass ratio. Or is also dependent on the time t1?
What is the ratio of the mass of bodies[itex]\frac{m_{2}}{m_{1}}[/itex]=?, if the sum of their orbits must be equal to L?
 
  • #4
hi asteorit! :wink:

i see … so it's equal-and-opposite-reaction-forces, but without contact

ok, then start by writing out Ftotal = ma for each body …

what do you get? :smile:
 
  • #5
tiny-tim said:
hi asteorit! :wink:

i see … so it's equal-and-opposite-reaction-forces, but without contact

ok, then start by writing out Ftotal = ma for each body …

what do you get? :smile:

I do not understand it, to me you ask? Some will not understand it?
Because I need to know what is the ratio of the masses.
 

Related to How to calculate the ratio of weight?

1. How do I calculate the ratio of weight between two objects?

To calculate the ratio of weight between two objects, you need to divide the weight of one object by the weight of the other object. For example, if object A weighs 10 pounds and object B weighs 5 pounds, the ratio of weight would be 10/5 or 2/1.

2. What is the formula for calculating weight ratio?

The formula for calculating weight ratio is weight of object A/weight of object B. This will give you the ratio of weight between the two objects.

3. How do I convert weight to a ratio?

To convert weight to a ratio, you need to divide the weight of one object by the weight of another object. This will give you the ratio of weight between the two objects.

4. What is the importance of calculating weight ratio?

Calculating weight ratio is important in many scientific and engineering applications. It helps determine the relationship between the weights of different objects and can be used to compare and analyze data.

5. Can the weight ratio of two objects be greater than 1?

Yes, the weight ratio of two objects can be greater than 1. This means that one object is heavier than the other. For example, if the weight ratio is 2/1, it means that object A is twice as heavy as object B.

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