A) \[0.2{{\operatorname{R}}_{e}}\]
B) \[2{{\operatorname{R}}_{e}}\]
C) \[0.5{{\operatorname{R}}_{e}}\]
D) \[5{{\operatorname{R}}_{e}}\]
Correct Answer: D
Solution :
[d] Range of projectile \[R=\frac{{{u}^{2}}\sin 2\theta }{g}\] if u and \[\theta \] are constant then \[R\propto \frac{1}{g}\] \[\frac{{{R}_{m}}}{{{\operatorname{R}}_{e}}}=\frac{{{g}_{e}}}{{{g}_{m}}}\Rightarrow \frac{{{R}_{m}}}{{{\operatorname{R}}_{e}}}=\frac{1}{0.2}\] \[\Rightarrow {{R}_{m}}=\frac{{{\operatorname{R}}_{e}}}{0.2}\Rightarrow {{R}_{m}}=5{{\operatorname{R}}_{e}}\]You need to login to perform this action.
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