A) higher velocity on the moon.
B) lower velocity on the moon.
C) same velocity on the moon as that of the earth.
D) It depends on the mass of the body.
Correct Answer: B
Solution :
Given \[{{h}_{\max }}=\frac{{{u}_{m}}^{2}}{2g}\]is same on the earth and as moon,\[\frac{{{u}_{m}}^{2}}{2{{g}_{m}}}=\frac{{{u}_{e}}^{2}}{2{{g}_{e}}}\]but\[{{g}_{earth}}=6\,\,{{g}_{m}}\] \[\therefore \] \[\frac{{{u}_{m}}^{2}}{2{{g}_{m}}}=\frac{{{u}_{e}}^{2}}{2(6{{g}_{m}})},\,\,{{u}_{e}}=\sqrt{6}{{u}_{m}}\Rightarrow {{u}_{e}}>{{u}_{m}}\]
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