QQuestionPhysics
QuestionPhysics
Can someone explain how exactly to calculate the net force? Do you subtract the smaller number from the larger number?
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Answer
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Step 1:I'll solve this problem step by step, explaining how to calculate net force:
Step 2:: Understand Net Force
Net force is the vector sum of all individual forces acting on an object. This means: - If forces are in the same direction, ADD them - If forces are in opposite directions, SUBTRACT them - The direction of the net force depends on which force is larger
Step 3:: Identify the Forces
- Force 2 (right): $$30 \text{ N}$$ pointing right
From the image, we have:
Step 4:: Determine Force Directions
- Left-pointing forces are considered negative - Right-pointing forces are considered positive
Step 5:: Calculate Net Force
F_{net} = -20 \text{ N}
F_{net} = - 50 \text{ N} + 30 \text{ N}
Step 6:: Interpret the Result
- The negative sign means the net force is 20 N to the left - The object will accelerate to the left
Final Answer
The net force is - 20 \text{ N} (20 N to the left)
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