(1 point) Basil drops a baseball from the top of a 88 m tall building. (a) Determine the speed of the ball 2's after it was dropped.
m/s
(b) Determine how far the ball falls after 2 s.
m
(c) Determine when the ball reaches the ground.
I
s

a) The magnitude of the speed of the ball at 2s is 19.62 m/s.

b) The ball has traveled 19.62 m after 2 seconds

c) The ball reaches the ground in 4.24 s.

Explanation:

a) The speed of the ball at 2 s after it was dropped is:

Where:

: is the final speed =?

: is the initial speed = 0 (it is dropped)

g: is the gravity = 9.81 m/s²

t: is the time = 2 s

Then, the speed of the ball at 2s is -19.62 m/s. The minus sign is because the speed is in the negative direction (down).

b) The height at which is the ball after 2 seconds is:

Taking y₀ = 0 we have:

The ball has traveled 19.62 m after 2 seconds. The minus sign is because the height is in the negative direction.

c) The time at which the ball reaches the ground is:

Therefore, the ball reaches the ground in 4.24 s.

I hope it helps you!                      

the moon affects the earth gravitation ally, causing certain motions of that body and also producing tides in its ocean and atmosphere. the tidal wave in our atmosphere is, however, far too minute to be an effective cause in any known meteorological phenomenon.

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