A skater with a mass of 72 kg is traveling east at 5.8 m/s when he collides with another skater of mass 45 kg heading 60° south of west at 12 m/s. If they stay tangled together, what is their final velocity?

The final velocity is 5.87 m/s

Explanation:

Given-

mass, = 72 kg

speed, = 5.8 m/s

,  = 45 kg

,  = 12 m/s

Θ = 60°

Final velocity, v = ?

Applying the conservation of momentum:

X + X = ( + ) v

72 X 5.8 + 45 X 12 X cos 60° = (72 + 45) v

v = 417.6 + 540 X

v = 417.6 +

v = 5.87 m/s

The final velocity is 5.87 m/s

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)