5th Edition

ISBN: 9780134378060

Author: GIANCOLI

Publisher: RENT PEARS

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Textbook Question

Chapter 3, Problem 96GP

The speed of a boat in still water is v. The boat is to make a round trip in a river whose current travels at speed u. Derive a formula for the time needed to make a round trip of total distance D if the boat makes the round trip by moving (a) upstream and back downstream, and (b) directly across the river and back. We must assume u < v; why?

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Chapter 3, Problem 95GP

Chapter 3, Problem 97GP

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Race car driver is cruising down the street at a constant speed of 28.9 m/s (~65 mph; he has a “lead” foot) when the traffic light in front of him turns red. a) If the driver’s reaction time is 160 ms, how far does he and his car travel down the road from the instant he sees the light change to the instant he begins to slow down? b) If the driver’s combined reaction and movement time is 750 ms, how far do he and his car travel down the road from the instant he sees the light change to the instant he slams on her brakes and car begins to slow down? Please answer parts a-B. Show all work. For each question draw a diagram to show the vector/s. Show all the step and provide units in the answers. Provide answer to 2 decimal places. DONT FORGET TO DRAW VECTORS! ONLY USE BASIC FORMULAS TAUGHT IN PHYSICS. distance = speed * time.

Race car driver is cruising down the street at a constant speed of 28.9 m/s (~65 mph; he has a “lead” foot) when the traffic light in front of him turns red. a) If the driver’s reaction time is 160 ms, how far does he and his car travel down the road from the instant he sees the light change to the instant he begins to slow down? b) If the driver’s combined reaction and movement time is 750 ms, how far do he and his car travel down the road from the instant he sees the light change to the instant he slams on her brakes and car begins to slow down? c) If the driver’s average rate of acceleration is -9.5 m/s2 as he slows down, how long does it take him to come to a stop (use information about his speed of 28.9 m/s but do NOT use his reaction and movement time in this computation)? Please answer parts a-c. Show all work. For each question draw a diagram to show the vector/s. Show all the step and provide units in the answers. Provide answer to 2 decimal places unless stated otherwise.…

How is it that part a is connected to part b? I can't seem to solve either part and don't see the connection between the two.

Chapter 3 Solutions

PHYSICS F/SCI.+ENGR.,CHAPTERS 1-37

Ch. 3.2 - Prob. 1AE Ch. 3.3 - What does the incorrect vector in Fig. 36c...Ch. 3.8 - Prob. 1DE Ch. 3.8 - The maximum range of a projectile is found to be...Ch. 3 - One car travels due east at 40 km/h. and a second...Ch. 3 - Can you conclude that a car is not accelerating if...Ch. 3 - Prob. 3Q Ch. 3 - Can the displacement vector for a particle moving...Ch. 3 - During baseball practice, a batter hits a very...Ch. 3 - If V=V1+V2, is V necessarily greater than V1...

Ch. 3 - Prob. 7Q Ch. 3 - Can two vectors, of unequal magnitude, add up to...Ch. 3 - Can the magnitude of a vector ever (a) equal, or...Ch. 3 - Can a particle with constant speed be...Ch. 3 - Prob. 11Q Ch. 3 - In archery, should the arrow be aimed directly at...Ch. 3 - Prob. 13Q Ch. 3 - Prob. 14Q Ch. 3 - Prob. 15Q Ch. 3 - A projectile is launched at an upward angle of 30...Ch. 3 - A projectile has the least speed at what point in...Ch. 3 - Two cannonballs, A and B, are fired from the...Ch. 3 - A person sitting in an enclosed train car, moving...Ch. 3 - If you are riding on a train that speeds past...Ch. 3 - Two rowers, who can row at the same speed in still...Ch. 3 - If you stand motionless under an umbrella in a...Ch. 3 - Prob. 1MCQ Ch. 3 - Prob. 2MCQ Ch. 3 - Prob. 3MCQ Ch. 3 - Prob. 4MCQ Ch. 3 - Prob. 6MCQ Ch. 3 - Prob. 7MCQ Ch. 3 - Prob. 8MCQ Ch. 3 - Prob. 10MCQ Ch. 3 - Prob. 12MCQ Ch. 3 - Prob. 13MCQ Ch. 3 - Prob. 14MCQ Ch. 3 - Prob. 15MCQ Ch. 3 - Prob. 1P Ch. 3 - Prob. 3P Ch. 3 - (II) Graphically determine the resultant of the...Ch. 3 - Prob. 5P Ch. 3 - Prob. 6P Ch. 3 - Prob. 7P Ch. 3 - Prob. 8P Ch. 3 - Prob. 9P Ch. 3 - Prob. 10P Ch. 3 - (II) (a) Given the vectors A and B shown in Fig....Ch. 3 - (II) Determine the vector AC, given the vectors A...Ch. 3 - Prob. 13P Ch. 3 - Prob. 14P Ch. 3 - Prob. 15P Ch. 3 - Prob. 16P Ch. 3 - Prob. 17P Ch. 3 - Prob. 18P Ch. 3 - Prob. 19P Ch. 3 - (I) What was the average velocity of the particle...Ch. 3 - Prob. 21P Ch. 3 - (II) At t = 0, a particle starts from rest at x =...Ch. 3 - Prob. 23P Ch. 3 - Prob. 24P Ch. 3 - Prob. 25P Ch. 3 - Prob. 26P Ch. 3 - Prob. 27P Ch. 3 - Prob. 28P Ch. 3 - Prob. 30P Ch. 3 - Prob. 31P Ch. 3 - Prob. 32P Ch. 3 - Prob. 33P Ch. 3 - Prob. 34P Ch. 3 - Prob. 35P Ch. 3 - Prob. 36P Ch. 3 - (II) A fire hose held near the ground shoots water...Ch. 3 - Prob. 38P Ch. 3 - Prob. 39P Ch. 3 - Prob. 40P Ch. 3 - Prob. 41P Ch. 3 - Prob. 42P Ch. 3 - Prob. 43P Ch. 3 - Prob. 44P Ch. 3 - Prob. 45P Ch. 3 - Prob. 46P Ch. 3 - Prob. 47P Ch. 3 - Prob. 48P Ch. 3 - Prob. 49P Ch. 3 - Prob. 50P Ch. 3 - Prob. 51P Ch. 3 - Prob. 52P Ch. 3 - (II) (a) A long jumper leaves the ground at 45...Ch. 3 - Prob. 54P Ch. 3 - Prob. 55P Ch. 3 - Prob. 56P Ch. 3 - Prob. 57P Ch. 3 - Prob. 58P Ch. 3 - (II) Suppose the kick in Example 3-7 is attempted...Ch. 3 - Prob. 60P Ch. 3 - Prob. 61P Ch. 3 - Prob. 62P Ch. 3 - (I) Huck Finn walks at a speed of 0.70m/s across...Ch. 3 - (II) Determine the speed of the boat with respect...Ch. 3 - Prob. 65P Ch. 3 - (II) A passenger on a boat moving at 1.70 m/s on a...Ch. 3 - Prob. 67P Ch. 3 - (II) In what direction should the pilot aim the...Ch. 3 - Prob. 69P Ch. 3 - Prob. 70P Ch. 3 - (II) A swimmer is capable of swimming 0.60 m/s in...Ch. 3 - (II) A swimmer is capable of swimming 0.60m/s in...Ch. 3 - Prob. 73P Ch. 3 - Prob. 74P Ch. 3 - Prob. 75P Ch. 3 - Prob. 76GP Ch. 3 - Prob. 77GP Ch. 3 - Prob. 78GP Ch. 3 - Prob. 79GP Ch. 3 - (II) Here is something to try at a sporting event....Ch. 3 - Prob. 82GP Ch. 3 - Prob. 83GP Ch. 3 - Prob. 84GP Ch. 3 - Prob. 85GP Ch. 3 - Prob. 86GP Ch. 3 - Prob. 87GP Ch. 3 - Prob. 88GP Ch. 3 - Prob. 89GP Ch. 3 - Prob. 90GP Ch. 3 - Prob. 91GP Ch. 3 - Prob. 93GP Ch. 3 - Prob. 95GP Ch. 3 - The speed of a boat in still water is v. The boat...Ch. 3 - At t = 0 a batter hits a baseball with an initial...Ch. 3 - Prob. 98GP Ch. 3 - Prob. 99GP Ch. 3 - Prob. 100GP Ch. 3 - Prob. 101GP Ch. 3 - Prob. 102GP

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