A Ball Is Thrown Straight Down from the Top of a 250-Ft

question 42

Multiple Choice

A ball is thrown straight down from the top of a 250-ft building with an initial velocity of -12 ft per second. The position function is . What is the velocity of the ball after 4 seconds?

• A)The velocity after 4 seconds is -280 ft per second.
• B)The velocity after 4 seconds is -116 ft per second.
• C)The velocity after 4 seconds is -140 ft per second.
• D)The velocity after 4 seconds is -52 ft per second..
• E)The velocity after 4 seconds is -76 ft per second.