In an experiment, a student launches a ball with an initial horizontal velocity at an elevation 2 meters above ground. The ball follows a parabolic trajectory until it hits the ground. Which of the following accurately describes the graph of the ball's vertical acceleration versus time (taking the downward direction to be negative)? a. A negative value that does not change with time b. A gradually increasing negative value (straight line) c. An increasing rate of negative values over time (parabolic curve) d. Zero at all times since the initial motion is horizontal
In an experiment, a student launches a ball with an initial horizontal velocity at an elevation 2 meters above ground. The ball follows a parabolic trajectory until it hits the ground. Which of the following accurately describes the graph of the ball's vertical acceleration versus time (taking the downward direction to be negative)? a. A negative value that does not change with time b. A gradually increasing negative value (straight line) c. An increasing rate of negative values over time (parabolic curve) d. Zero at all times since the initial motion is horizontal
College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter2: Kinematics
Section: Chapter Questions
Problem 36PE: An express train passes through a station. It enters with an initial velocity of 22.0 m/s and...
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In an experiment, a student launches a ball with an initial horizontal velocity at an elevation 2 meters above ground. The ball follows a parabolic trajectory until it hits the ground. Which of the following accurately describes the graph of the ball's vertical acceleration versus time (taking the downward direction to be negative)?
a. A negative value that does not change with time
b. A gradually increasing negative value (straight line)
c. An increasing rate of negative values over time (parabolic curve)
d. Zero at all times since the initial motion is horizontal
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