Multiple Choice
A ball is thrown straight down from the top of a 280-ft building with an initial velocity of -24 ft per second.The position function is .What is the velocity of the ball after 4 seconds?
A) The velocity after 4 seconds is -88 ft per second.
B) The velocity after 4 seconds is -104 ft per second.
C) The velocity after 4 seconds is -152 ft per second.
D) The velocity after 4 seconds is -40 ft per second.
E) The velocity after 4 seconds is -304 ft per second.
Correct Answer:

Verified
Correct Answer:
Verified
Q30: Find the derivative of the function <img
Q31: An airplane flies at an altitude of
Q32: In a free-fall experiment,an object is dropped
Q33: If <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7497/.jpg" alt="If ,then
Q34: If the nth derivative of <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7497/.jpg"
Q36: Find the derivative of the function <img
Q37: The displacement from equilibrium of an object
Q38: Determine all values of x, (if any),at
Q39: The length of a rectangle is <img
Q40: A manufacturer of digital audio players estimates