4. Michael and his twin brother have a combined mass of 150 kg and are zooming along in a 100 kg amusement park bumper car at 7 m/s. They bump Sarah's car, which is at rest.
Sarah has a mass of 30 kg. After they collide, the twins continue ahead with a speed of 2.5
m/s. How fast is Sarah's car bumped across the floor?
Variables:
Show Work:

mass and volume are the answers you are looking for

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!