MCQ
A projectile fired with initial velocity $u$ at some angle $\theta $ has a range $R$. If the initial velocity be doubled at the same angle of projection, then the range will be
- A$2R$
- B$R/2$
- C$R$
- ✓$4R$
✓
Answer
Correct option: D.
$4R$
d
(d) $R = \frac{{{u^2}\sin 2\theta }}{g}$
(d) $R = \frac{{{u^2}\sin 2\theta }}{g}$
$\therefore R \propto {u^2}$. If initial velocity be doubled then range will become four times.
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