The value of acceleration due to gravity at earth's surface is 9.8 ms^(-2). The altitude above its surface at which the acceleration due to gravity decreases to , is close to: (radius of earth = 6.4 xx 10^(6) m)

The value of acceleration due to gravity at earth's surface is 9.8 ms^

1.	The value of acceleration due to gravity at earth's surface is 9.8 ms^(-2). The altitude above its surface at which the acceleration due to gravity decreases to , is close to: (radius of earth = 6.4 xx 10^(6) m)
Answer» `2.6 XX 10^(6)m` `6.4 xx 10^(6)m` `9.0 xx 10^(6)m` `1.6 xx 10^(6)m` ANSWER :A