MCQ
The horizontal range is four times the maximum height attained by a projectile. The angle of projection is ......... $^o$
- A${90}$
- B${60}$
- ✓${45}$
- D${30}$
✓
Answer
Correct option: C.
${45}$
c
$ R = 4H\cot \theta ,$
$ R = 4H\cot \theta ,$
if R = 4H then $\cot \theta = 1 \Rightarrow \theta = 45^\circ $
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