In a soccer game a midfielder kicks the ball from one touchline directly toward

5.8 m/s

Explanation:

First, we can find the net velocity of the ball. In fact, we know that the total time of travel is

While the total displacement is

d = 40.2 m

So, the net velocity is

We know that the direction of the velocity is equal to that of the displacement, so

above the positive x axis. Therefore, we can find the velocity along the y-axis:

And since the initial motion of the ball was only along the x-axis, we can say that this is the speed at which the stricker kicked the ball.

francesco redi

explanation:

francesco redi did an experiment with meat and maggots and concluded that maggots do not arise spontaneously from rotting meat. the needham and the spallanzani experiments were additional experiments that were conducted to disprove spontaneous generation.