Concept explainers
Magnitude and direction of third force.
Answer to Problem 81A
Explanation of Solution
Given:
The given forces are:
Formula Used:
Vector resolution along x and y axis.
Where,
Calculation:
For three forces to be in equilibrium, the magnitude of third force is equal to the vector sum of other two forces and the direction will be opposite of the resultant.
So, resolve and add the two given forces
Now,
The direction is,
Conclusion:
Therefore, the third force is
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