If the mass of sun were ten times smaller and gravitational constant G were ten times larger in magnitudes -

Given:

New gravitational constant G’ = 10G

M_s’ = M_s/10

Gravitational field due to earth is given by

Force on the man due to sun

Where r = distance between centre of sun and man

Since r≫R the effect due to sun can be neglected and the gravity pull will increase. Due to it, walking on the ground can be difficult

As the acceleration due to gravity g increases, the raindrops fall much faster than usual

Also, airplanes will have to travel much faster to overcome the increased gravitational pull of the earth