A ball is thrown into the air with a velocity of 34 ft/s. Its height, in feet, after t seconds is given by s(t) = 34t – 16f. Find the velocity (in ft/s) of the ball at time t= 1 second. -

If a rock is thrown upward on the planet Mars with a velocity of 12 m/s, its height (in meters) after t seconds is given by H = 12t - 1.862. (a) Find the velocity of the rock after one second. m/s (b) Find the velocity of the rock when t = a. m/s (c) When will the rock hit the surface? (Round your answer to one decimal place.) t = (d) With what velocity will the rock hit the surface? m/s Submit Answer View Previous Question Question 4 of 27 View Next Question Home My Assignments + Request Extension Copyright© 1998 - 2021 Cengage Learning, Inc. All Rights Reserved TERMS OF USE PRIVACY

If the amount of drug in a person's blood after t hours is  (t) = t/(t2 + 25), when will the drug concentration be the greatest?