1) 0N... friction opposes the motion of an object, since the block is at rest there is no motion thus no friction
2) F=ma
= (5.5kg)(30m/s)
=165 N
As we know that acceleration is directly proportional to force, therefore as the force is doubled, acceleration gets doubled too.
It does not move because of the sun the sun has no energy.
The equation for force is F=ma. Because we have the value of mass (0.42 kg) and the acceleration (14.8 m/s^2), simply plug them into the equation for force to get

The answer is 6.22 N because newtons are the unit used to measure force.
The acceleration is 3 m/s per minute, or 0.05 m/s per second.