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Two equal forces act on a body along the same straight line but in opposite directions. What is the resultant force on the body?
ATwice either force
BHalf of one force
CZero
DEqual to one force
Answer & Solution
Correct answer: C. Zero
1. For unlike parallel forces in the same line, F_net = F₁ − F₂.
2. Since the forces are equal, F₁ = F₂.
3. So F_net = F₁ − F₂ = 0, and the body is in equilibrium.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 1 "Laws of Motion", p.11_
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