The correct option is (b) decrease 10 times
Explanation: New mass of the earth (M’) = 0.01 x Original mass of the earth (M)
Therefore;
M’ = M/100
Escape velocity (v) is directly proportional to the square root of the mass
“v” is directly proportional to the square root of “M’”.
Therefore;
New escape velocity (v’) = v/10.