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If one person pushes on an object with a force of 200 N and another person pushes with a force of 150 N in the opposite direction, what is the net force on the object?

Sagot :

So, their net force on the object is 50 N in a forward direction from the first person.

Introduction

Hi ! Here, I will help you with the net forces (results of forces) acting on a two-dimensional area and in opposite directions. Steps that can be taken are as follows :

  • Determine where the force will go, the important thing is that you are consistent until the end.
  • Count the values of the force acting, the force against the direction of your mind in number 1 is given a negative sign.
  • Look at the results, if it's marked (-), then choose the opposite direction from your thoughts at number 1.

The equation for calculating the net force from this two-dimensional straight line is as follows:

[tex] \boxed{\sf{\bold{\sum F = F_1 + F_2 + ... + F_n}}} [/tex]

With the following condition :

  • [tex] \sf{\sum F} [/tex] = net force (N)
  • [tex] \sf{F_1} [/tex] = first force and its direction (N)
  • [tex] \sf{F_2} [/tex] = second force and its direction (N)
  • [tex] \sf{... + F_n} [/tex] = You can add up the force values as many times as the question (N).

Problem Solving

We know that :

In my mind, I determined that the force will go to forward direction from the first person. So :

  • [tex] \sf{F_1} [/tex] = first person force = 200 N >> Because he is the frame of reference.
  • [tex] \sf{F_2} [/tex] = second person force = -150 N >> Because he against the direction of the frame of reference (first person)

What was asked :

  • [tex] \sf{\sum F} [/tex] = net force = ... N

Step by step :

[tex] \sf{\sum F = F_1 + F_2} [/tex]

[tex] \sf{\sum F = 200 + (-150)} [/tex]

[tex] \sf{\sum F = 200 - 150} [/tex]

[tex] \boxed{\sf{\sum F = 50 \: N} [/tex]

Conclusion

The movement of the object is forward (from the first person) because the net force value that I calculated is not opposite (with negative sign) to the right direction. So, their net force on the object is 50 N to the forward direction from first person.