Trigonometry ApplicationsMediumQuestion 5129
Question
A projectile is launched at 45°. Its horizontal and vertical components of initial velocity u are:
- Au and 0
- Bu/√2 and u/√2Correct
- Cu/2 and u/2
- Du and u
Correct answer
u/√2 and u/√2
Explanation
uₓ = u cos45° = u/√2, uᵧ = u sin45° = u/√2. At 45°, both components are equal: u/√2 each.