MCQ
A bullet is fired from a cannon with velocity $500 \,m/s$. If the angle of projection is ${15^o}$ and $g = 10m/{s^2}$. Then the range is
- A$25 \times {10^3}m$
- ✓$12.5 \times {10^3}m$
- C$50 \times {10^2}m$
- D$25 \times {10^2}m$
✓
Answer
Correct option: B.
$12.5 \times {10^3}m$
b
(b) $R = \frac{{{u^2}\sin 2\theta }}{g} = \frac{{{{(500)}^2} \times \sin 30^\circ }}{{10}} = 12.5 \times {10^3}\,m$
(b) $R = \frac{{{u^2}\sin 2\theta }}{g} = \frac{{{{(500)}^2} \times \sin 30^\circ }}{{10}} = 12.5 \times {10^3}\,m$
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