Which of the following affects the welght of a person on Earth? Select all that apply Earth's distance from the Sun at different points inits orbit
OEarth is not a
ect sphere so th8re are
ances to the center or Ea
Earth's volurme is variable because apoit
the planet is the surroundin
us atmosphere.
Variations in the density of the earth'5 erd
avitational cor
fferent locations on E

the answer is 303.15 or 303

the volume increases

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied