Calculus ApplicationsHardQuestion 5140
Question
If v = u + at (where u, a are constants), then the displacement from t = 0 to t = T is:
- AuT + aT²
- BuT + (1/2)aT²Correct
- CuT − (1/2)aT²
- D(1/2)aT²
Correct answer
uT + (1/2)aT²
Explanation
s = ∫₀ᵀ (u + at) dt = [ut + at²/2]₀ᵀ = uT + (1/2)aT². This is the standard kinematic equation.