Asoccer ball kicked on a level field has an initial vertical velocity component of 15.0 meters per second. assuming the ball lands at the same height from which it was kicked, what is the total time the ball is in the air?

The total time the ball is in the air = 3.06 seconds

Explanation:

Considering vertical motion of ball:-

Initial velocity, u =  15 m/s

Acceleration , a = -9.81 m/s²

Displacement, s = 0 m

We have equation of motion s= ut + 0.5 at²

Substituting

   s= ut + 0.5 at²

    0 = 15 x t + 0.5 x -9.81 x t²

    4.905t = 15

       t = 3.06 s

The total time the ball is in the air = 3.06 seconds

convex lenses are thicker at the middle. rays of light that pass through the lens are brought closer together (they converge). a convex lens is a converging lens. when parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.

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