A tennis ball is moving 30 m/s toward a player who swings a racquet at a velocity of 15 m/s toward the ball. What is the velocity of the ball relative to the racquet?

The velocity of the ball relative the racquet is 15 m/s.

Step-by-step explanation:

Given;

velocity of the tennis ball, = 30 m/s

Velocity of the racquet swung in opposite direction, = 15 m/s

The velocity of the ball relative the racquet () is calculated as;

Therefore, the velocity of the ball relative the racquet is 15 m/s.

a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24