When a wristwatch timer begins with a time of zero seconds, identical soccer balls have a horizontal separation,d=d=6.78mm. The ball on the left is released from the ground with an initial velocity of magnitudev0v0directed toward the other soccer ball. The ball on the right has an initial heighth1=h1=3.12mmand is momentarily at rest. A short time later, the identical soccer balls collide at the collision point,CC, at a heighth2=h2=1.69mmabove the ground, as indicated on the sketch. Ignore the finite size of the balls, and additionally ignore any air resistance. (Dimensions are not to scale.)

1. Given the numeric values in the problem statement, enter the elapsed time, in seconds, at which the identical soccer balls collide?

2. Given the numeric values in the problem statement, enter the magnitude, in meters per second, of the initial velocity of the soccer ball on the left?

Co- h1 ih2 O