AIPMT MAIN2008Physics-Forces
AIPMT MAIN 2008 Physics Resultant Force MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Three forces acting on a body are shown in the figure. To have the resultant force only along the y-direction, the magnitude of the minimum additional force needed is
A
√3 N
B
0.5 N
C
1.5 N
D
√3/4 N
Correct Answer
Option B
Detailed Explanation
Net force along x-axis must be zero. By resolving forces, F + 1 sin 30° + 2 sin 30° - 4 sin 30° = 0, which gives |F| = 0.5 N.
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