It means the speed of the object is increasing
and
there is a positive acceleration in the direction of the velocity
hence
there is a force acting on the object, in the direction of the velocity
The answer is A because at a young age children will not understand and they need to learn at the appropriate level
Answer:0.25 times
Explanation:
Given
Distance of satellite from earth surface=Radius of earth
Force on the satellite is F=mg'
where g'=acceleration due to gravity at that point
Distance from center of Earth=R+R=2R
Gravitational Force is given by

Force 
Force on earth surface 
Divide 1 and 2 we get

Arterie
cwamus
capillaries
phloprant
veins
piscas