Quiz
MTH304 Solution by Tahzeeb Khan
PDF 761 KB
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- Type
- Quiz
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- MTH304 Statics
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- PDF 761 KB
- Updated
- 23 Oct 2026
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Q1. An 20N force acts on a 3kg box, which is in contact with a 5kg box on a smooth surface. Determine the contact force between them.
Given:
F=20N Mass of box 1:= 3kg Mass of box 2:= 5kg smooth surface =0
Q2. Two forces act on a point such that one force is twice the magnitude of the other. If their resultant is perpendicular to the smaller force. What would be the angle between the two forces?
Given:
Let Smaller force = F Larger force = 2F The resultant R is perpendicular to the smaller force F. So, R⊥F We must find the angle θ between the two forces.
Step 1: Use vector addition formula for the resultant
(2 ) 2( )(2F)cos (1 4 4cos ) (5 4cos ) R F F F R F R F
Q3. Find the magnitudes of two forces if their resultant is
5 N when they act at right angles, and 7 N when they act at an angle of 60°.
Given:
Let the two forces be P and Q. When they act at right angles (90°):
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