EP PHYSICS (W/ANSWERS+INDEX)
10th Edition
ISBN: 9781119081739
Author: CUTNELL
Publisher: WILEY
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Chapter 3, Problem 20P
To determine
The speed of the ball just before it lands.
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For either the time for one full cycle is 0.040 s; this is the period.
Part C
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Part C
Find the height yi
from which the rock was launched.
Express your answer in meters to three significant figures.
Learning Goal:
To practice Problem-Solving Strategy 4.1 for projectile motion problems.
A rock thrown with speed 12.0 m/s and launch angle 30.0 ∘ (above the horizontal) travels a horizontal distance of d = 19.0 m before hitting the ground. From what height was the rock thrown? Use the value g = 9.800 m/s2 for the free-fall acceleration.
PROBLEM-SOLVING STRATEGY 4.1 Projectile motion problems
MODEL: Is it reasonable to ignore air resistance? If so, use the projectile motion model.
VISUALIZE: Establish a coordinate system with the x-axis horizontal and the y-axis vertical. Define symbols and identify what the problem is trying to find. For a launch at angle θ, the initial velocity components are vix=v0cosθ and viy=v0sinθ.
SOLVE: The acceleration is known: ax=0 and ay=−g. Thus, the problem becomes one of…
Phys 25
Chapter 3 Solutions
EP PHYSICS (W/ANSWERS+INDEX)
Ch. 3.1 - 1. Suppose you are driving due east, traveling a...Ch. 3.2 - 2. A power boat, starting from rest, maintains a...Ch. 3.3 - 3. A projectile is fired into the air, and it...Ch. 3.3 - Prob. 4CYUCh. 3.3 - Prob. 5CYUCh. 3.3 - Prob. 6CYUCh. 3.3 - Prob. 7CYUCh. 3.3 - Prob. 8CYUCh. 3.3 - Prob. 9CYUCh. 3.3 - Prob. 10CYU
Ch. 3.3 - Prob. 11CYUCh. 3.3 - Prob. 12CYUCh. 3.4 - 13. Three cars, A, B, and C, are moving along a...Ch. 3.4 - Prob. 14CYUCh. 3.4 - Prob. 15CYUCh. 3.4 - Prob. 17CYUCh. 3 - Prob. 1FCCh. 3 - Prob. 3FCCh. 3 - 4. Each drawing shows three points along the path...Ch. 3 - Prob. 6FCCh. 3 - Prob. 9FCCh. 3 - Prob. 14FCCh. 3 - Prob. 15FCCh. 3 - Prob. 16FCCh. 3 - Prob. 1PCh. 3 - Prob. 2PCh. 3 - Prob. 3PCh. 3 - Prob. 4PCh. 3 - Prob. 5PCh. 3 - Prob. 6PCh. 3 - Prob. 7PCh. 3 - Prob. 8PCh. 3 - Prob. 9PCh. 3 - Prob. 10PCh. 3 - Prob. 11PCh. 3 - Prob. 12PCh. 3 - Prob. 13PCh. 3 - Prob. 14PCh. 3 - 15. A skateboarder shoots off a ramp with a...Ch. 3 - 16. A puck is moving on an air hockey table....Ch. 3 - Prob. 17PCh. 3 - Prob. 18PCh. 3 - Prob. 19PCh. 3 - Prob. 20PCh. 3 - Prob. 21PCh. 3 - Prob. 22PCh. 3 - Prob. 23PCh. 3 - Prob. 24PCh. 3 - Prob. 25PCh. 3 - Prob. 26PCh. 3 - Prob. 27PCh. 3 - Prob. 28PCh. 3 - Prob. 29PCh. 3 - Prob. 30PCh. 3 - Prob. 31PCh. 3 - Prob. 32PCh. 3 - Prob. 33PCh. 3 - 34. On a distant planet, golf is just as popular...Ch. 3 - Prob. 35PCh. 3 - 36. A rifle is used to shoot twice at a target,...Ch. 3 - Prob. 37PCh. 3 - Prob. 38PCh. 3 - Prob. 39PCh. 3 - Prob. 40PCh. 3 - Prob. 41PCh. 3 - Prob. 42PCh. 3 - Prob. 43PCh. 3 - Prob. 44PCh. 3 - Prob. 45PCh. 3 - Prob. 46PCh. 3 - Prob. 47PCh. 3 - Prob. 48PCh. 3 - Prob. 49PCh. 3 - Prob. 50PCh. 3 - Prob. 51PCh. 3 - Prob. 52PCh. 3 - Prob. 53PCh. 3 - Prob. 54PCh. 3 - Prob. 55PCh. 3 - Prob. 56PCh. 3 - Prob. 57PCh. 3 - Prob. 58PCh. 3 - Prob. 59PCh. 3 - 60. The captain of a plane wishes to proceed due...Ch. 3 - Prob. 61PCh. 3 - Prob. 62PCh. 3 - Prob. 63PCh. 3 - Prob. 64PCh. 3 - Prob. 65PCh. 3 - Prob. 66APCh. 3 - 67. A dolphin leaps out of the water at an angle...Ch. 3 - Prob. 68APCh. 3 - Prob. 69APCh. 3 - Prob. 70APCh. 3 - 71. Multiple-Concept Example 4 provides useful...Ch. 3 - Prob. 72APCh. 3 - *73. A golfer, standing on a fairway, hits a shot...Ch. 3 - Prob. 74APCh. 3 - Prob. 75APCh. 3 - Prob. 76APCh. 3 - Prob. 77APCh. 3 - Prob. 78APCh. 3 - Prob. 79APCh. 3 - Prob. 80APCh. 3 - Prob. 81CCPCh. 3 - Prob. 82CCP
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Kinematics Part 3: Projectile Motion; Author: Professor Dave explains;https://www.youtube.com/watch?v=aY8z2qO44WA;License: Standard YouTube License, CC-BY