For moon, its mass is 1/81 of earth mass and its diameter is 1/3.7 of earth dia. If acceleration due to gravity at earth surface is 9.8 `m//s^2` then at moon its value is :A. 2.86 `m//s^2`B. 1.65 `m//s^2`C. 8.65 `m//s^2`D. 5.16 `m//s^2`

For moon, its mass is 1/81 of earth mass and its diameter is 1/3.7 of

1.	For moon, its mass is 1/81 of earth mass and its diameter is 1/3.7 of earth dia. If acceleration due to gravity at earth surface is 9.8 `m//s^2` then at moon its value is :A. 2.86 `m//s^2`B. 1.65 `m//s^2`C. 8.65 `m//s^2`D. 5.16 `m//s^2`
Answer» Correct Answer - B `g=(GM)/(R^2) " or " gpropM/R^2` `g_M=(M_M)/(M_E)xx((R_E)/(R_M))^2xxg_E` `=1/81xx(3.7)^2xx9.8=9.8/6=1.65 m//s^2`

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For moon, its mass is 1/81 of earth mass and its diameter is 1/3.7 of earth dia. If acceleration due to gravity at earth surface is 9.8 `m//s^2` then at moon its value is :A. 2.86 `m//s^2`B. 1.65 `m//s^2`C. 8.65 `m//s^2`D. 5.16 `m//s^2`

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