the answer is spiral galaxies
Force is equal to mass multiply by acceleration.
force is also equal to mass multiply by gravity
F=ma
F=mg
1) Speed acquired
The time taken for the motion is
The bus is moving by uniformly accelerated motion, with constant acceleration
, so the speed acquired by the bus after 120 s is
2) The distance traveled is given by the following formula:
where a is the acceleration and t the time. Substituting numbers into the equation, we find
To rearrange these for v and r we must use BEDMAS.
First, times both sides by r, getting Ar = v²r/r
You can cancel out r/r to get Ar = v²
To get v, square root both sides. √Ar = √v²
Cancel out the square root and the squared v = √Ar
To get r, go back to Ar = v², then divide both sides by A. rA/A = v²/A
Then cancel out A/A to get r. r = v²/A