A) 3.5
B) 5.9
C) 163
D) 110.8
Correct Answer: A
Solution :
[a] Horizontal range = \[\frac{{{\text{u}}^{2}}\sin 2\theta }{g}\text{ so g}\propto {{\text{u}}^{2}}\] \[\text{or }\frac{{{\text{g}}_{\text{planet}}}}{{{\text{g}}_{\text{earth}}}}=\frac{{{\left( {{\text{u}}_{\text{planet}}} \right)}^{2}}}{{{\left( {{\text{u}}_{\text{earth}}} \right)}^{2}}}\] \[\text{Therefore }{{\text{g}}_{\text{planet}}}={{\left( \frac{3}{5} \right)}^{2}}\left( 9.8\text{ m/}{{\text{s}}^{2}} \right)\] \[=3.5\text{ m/}{{\text{s}}^{2}}\]You need to login to perform this action.
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