(instantaneous) velocity at t = a is the rate of change of fat a. A ball is thrown straight up with an initial velocity of 128 ft/sec, so that its height (in feet) after t sec is given by s = f(t) = 128t - 16t². (a) What is the average velocity of the ball over the following time intervals? [3, 4] ft/sec [3, 3.5] ft/sec ft/sec [3, 3.1] (b) What is the instantaneous velocity at time t = 3? ft/sec (c) What is the instantaneous velocity at time t = 7? ft/sec Is the ball rising or falling at this time? rising O falling (d) When will the ball hit the ground? sec
(instantaneous) velocity at t = a is the rate of change of fat a. A ball is thrown straight up with an initial velocity of 128 ft/sec, so that its height (in feet) after t sec is given by s = f(t) = 128t - 16t². (a) What is the average velocity of the ball over the following time intervals? [3, 4] ft/sec [3, 3.5] ft/sec ft/sec [3, 3.1] (b) What is the instantaneous velocity at time t = 3? ft/sec (c) What is the instantaneous velocity at time t = 7? ft/sec Is the ball rising or falling at this time? rising O falling (d) When will the ball hit the ground? sec
College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter2: Kinematics
Section: Chapter Questions
Problem 54PE: A ball is thrown straight up. It passes a 2.00-m-high window 7.50 m off the ground on its path up...
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