30) a foul ball is hit straight up into the air with a speed of 30.0 m/s. (a) calculate the time required for the ball to rise to its maximum height. (b) calculate the maximum height reached by the ball. (c) determine the time at which the ball pass a point 25.0 m above the point of contact between the bat and ball. (d) explain why t

a) 3.05 seconds

b) 45.87 m

c) 0.995 seconds

Explanation:

t = Time taken

u = Initial velocity = 30 m/s

v = Final velocity = 0

s = Displacement

a = Acceleration = 9.81 m/s² (positive downward, negative upward)

a) Time taken by the ball to reach maximum height

Time taken by the ball to reach maximum height is 3.05 seconds

b) Maximum height

Maximum height reached by the ball is 45.87 m

c) If s = 25 m

Velocity of the ball at 25 m height is 20.24 m/s

Time taken by the ball to reach a point 25.0 m above the point of contact between the bat and ball is 0.995 seconds

the word that best describes martin luther king jr.'s tone in the video is dignified

martin luther king, jr. was a social activist and baptist minister who played a key role in the american civil rights movement from the mid-1950s until his assassination in 1968. the video shows his manner and attitude having or showing a composed or serious manner that is worthy of respect so dignified is the correct answer