A) 1 m/s
B) 2 m/s
C) 3 m/s
D) 4 m/s
Correct Answer: A
Solution :
\[{{R}_{\max }}=\frac{{{u}^{2}}}{g}\] \[\Rightarrow \] \[0.2=\frac{{{u}^{2}}}{9.8}\] \[\Rightarrow \] \[u=1.4\,\,m/\sec \] Horizontal component of velocity of the grasshopper along the road \[u\cos =1.4\cos {{45}^{o}}\] \[=1.4\times \frac{1}{\sqrt{2}}=\mathbf{1}\,\,\mathbf{m/sec}\]
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