Carolyn is a 36 year old mother of 3 young children. She had an accident while skiing. After 4 months, she is still experiencing pain in her right knee and is walking with a limp. Carolyn visits the orthopedic physician and is told she needs an arthroscopy examination. While doing the arthroscopy, the physician also removes scar tissue in her knee joint. The follow-up care require intensive physical therapy. What leg muscles were affected by Carolyn's injury?

what are the two models

explanation:

the increase of protons   hope this

16

explanation:

the marks go by 4s

(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