College Physics
1st Edition
ISBN: 9781938168000
Author: Paul Peter Urone, Roger Hinrichs
Publisher: OpenStax College
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Textbook Question
Chapter 2, Problem 66PE
Figure 2.68 shows the displacement graph for a particle for 5 s. Draw the corresponding velocity and acceleration graphs.
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A ball is tossed vertically from the top of a building that is 96 stories tall (approximately 864 ft) with an initial velocity of 30 ft/sec. The initial acceleration is given by a=−32 ft/sec2.
1. Write the velocity equation with t as the variable and v as velocity.
2. Write the displacement equation with t as the variable and s as the displacement.
3. Find the velocity at 2 seconds.
______ ft/s
4. Find the height above the ground at 2 seconds.
______ft
A bullet is shot straight up into the air from ground level. It reaches a maximum height at h = 658 m.
a. Calculate the initial speed of the bullet, in m/s.
b. Using your previous results, calculate the total flight time, tt in seconds, until the bullet reaches the ground.
Samantha has a height of 1.83 meters measured from the ground surface. She then lifts a rock and throw it straight upward giving it an upward acceleration coming from rest of 35.0 m/s^2 for 64 cm. The vall was released 2.20 m above the ground.
a. How high above the ground does the rock go?
b. Compute the time she must get out of its way before it returns exactly at her height.
Chapter 2 Solutions
College Physics
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It passes a...Ch. 2 - Suppose you drop a rock into a dark well and,...Ch. 2 - A steel ball is dropped onto a hard floor from a...Ch. 2 - A coin is dropped from a hot-air balloon that is...Ch. 2 - A soft tennis ball is dropped onto a hard floor...Ch. 2 - (a) By taking the slope of the curve in Figure...Ch. 2 - Using approximate values, calculate the slope of...Ch. 2 - Using approximate values, calculate the slope of...Ch. 2 - By taking the slope of the curve in Figure 2.63,...Ch. 2 - Construct the displacement graph for the subway...Ch. 2 - (a) Take the slope of the curve in Figure 2.64 to...Ch. 2 - A graph of v(t) is shown for a world-class track...Ch. 2 - Figure 2.68 shows the displacement graph for a...
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