By analyzing its interactions with another particle.
A yellow pool ball cannot have the number 2 on it. There are no pool games that use a yellow number 2 ball. A snooker ball can be yellow with a number 2 on it. The ball is most likely a snooker ball.
2 points for potting the yellow ball.
What is the position of the ball at 7.5 seconds
Eletron and position
Softball also uses a yellow ball.
The position of the ball determines the spot.
1) The position vector of a particle is r= (a cosώt) i+ (a sinώt) j. The velocity of the particle is and find the parallel position vector.