EBK PHYSICS FOR SCIENTISTS & ENGINEERS
5th Edition
ISBN: 9780134296074
Author: GIANCOLI
Publisher: VST
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A plane flies 660 mi from Indonesia to Myanmar in 1.2 hr when traveling with a tailwind. The return flight against the same wind takes 1.5 hr. find the speed of the plane in still air and the speed of the wind.
A boat can travel at a speed of 8 km/h in still water on a lake. In the flowing water of a stream, it can move at 8 km/h relative to the water in the stream. If the stream speed is 3 km/h, how fast can the boat move past a tree on the shore in travelling (A) upstream (B) downstream?
b) During monsoon season, a rescue boat is cruising at a speed of 15ms-! in the
direction shown in Fig. Q1(b). At that instance, the water current is 5ms-.
Compute the relative speed of the boat with respect to water.
J15*
5ms"
15ms"
30°
Fig. Q1(b)
Chapter 3 Solutions
EBK PHYSICS FOR SCIENTISTS & ENGINEERS
Ch. 3.2 - Prob. 1AECh. 3.3 - What does the incorrect vector in Fig. 36c...Ch. 3.8 - Prob. 1DECh. 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. 3QCh. 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. 7QCh. 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. 11QCh. 3 - In archery, should the arrow be aimed directly at...Ch. 3 - Prob. 13QCh. 3 - Prob. 14QCh. 3 - Prob. 15QCh. 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. 1MCQCh. 3 - Prob. 2MCQCh. 3 - Prob. 3MCQCh. 3 - Prob. 4MCQCh. 3 - Prob. 6MCQCh. 3 - Prob. 7MCQCh. 3 - Prob. 8MCQCh. 3 - Prob. 10MCQCh. 3 - Prob. 12MCQCh. 3 - Prob. 13MCQCh. 3 - Prob. 14MCQCh. 3 - Prob. 15MCQCh. 3 - Prob. 1PCh. 3 - Prob. 3PCh. 3 - (II) Graphically determine the resultant of the...Ch. 3 - Prob. 5PCh. 3 - Prob. 6PCh. 3 - Prob. 7PCh. 3 - Prob. 8PCh. 3 - Prob. 9PCh. 3 - Prob. 10PCh. 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. 13PCh. 3 - Prob. 14PCh. 3 - Prob. 15PCh. 3 - Prob. 16PCh. 3 - Prob. 17PCh. 3 - Prob. 18PCh. 3 - Prob. 19PCh. 3 - (I) What was the average velocity of the particle...Ch. 3 - Prob. 21PCh. 3 - (II) At t = 0, a particle starts from rest at x =...Ch. 3 - Prob. 23PCh. 3 - Prob. 24PCh. 3 - Prob. 25PCh. 3 - Prob. 26PCh. 3 - Prob. 27PCh. 3 - Prob. 28PCh. 3 - Prob. 30PCh. 3 - Prob. 31PCh. 3 - Prob. 32PCh. 3 - Prob. 33PCh. 3 - Prob. 34PCh. 3 - Prob. 35PCh. 3 - Prob. 36PCh. 3 - (II) A fire hose held near the ground shoots water...Ch. 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 - (II) (a) A long jumper leaves the ground at 45...Ch. 3 - Prob. 54PCh. 3 - Prob. 55PCh. 3 - Prob. 56PCh. 3 - Prob. 57PCh. 3 - Prob. 58PCh. 3 - (II) Suppose the kick in Example 3-7 is attempted...Ch. 3 - Prob. 60PCh. 3 - Prob. 61PCh. 3 - Prob. 62PCh. 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. 65PCh. 3 - (II) A passenger on a boat moving at 1.70 m/s on a...Ch. 3 - Prob. 67PCh. 3 - (II) In what direction should the pilot aim the...Ch. 3 - Prob. 69PCh. 3 - Prob. 70PCh. 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. 73PCh. 3 - Prob. 74PCh. 3 - Prob. 75PCh. 3 - Prob. 76GPCh. 3 - Prob. 77GPCh. 3 - Prob. 78GPCh. 3 - Prob. 79GPCh. 3 - (II) Here is something to try at a sporting event....Ch. 3 - Prob. 82GPCh. 3 - Prob. 83GPCh. 3 - Prob. 84GPCh. 3 - Prob. 85GPCh. 3 - Prob. 86GPCh. 3 - Prob. 87GPCh. 3 - Prob. 88GPCh. 3 - Prob. 89GPCh. 3 - Prob. 90GPCh. 3 - Prob. 91GPCh. 3 - Prob. 93GPCh. 3 - Prob. 95GPCh. 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. 98GPCh. 3 - Prob. 99GPCh. 3 - Prob. 100GPCh. 3 - Prob. 101GPCh. 3 - Prob. 102GP
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- ). A boat heads 30 west of north with a water speed of 24 m/s. Determine its resultant velocity, relative to the ground, when it encounters ai0m/s current from 30° north of east.arrow_forwardA boat can travel 2.20 m/s in still water. (a) If the boat points directly across a stream whose current is 1.20 m/s what is the velocity (magnitude and direction) of the boat relative to the shore? (b) What will be the position of the boat, relative to its point of origin, after 3.00 s?arrow_forwardA student can row a boat 6km/h in still waters, she is on one bank of a 6 km wide river that has current of 3km/h. Assuming she is allowed to land anywhere on the shore: (i) What is the smallest amount of time she needs to get to the opposite bank?(ii) What is the student’s speed as viewed by the observer on the bank?arrow_forward
- A passenger on a bus walks towards the front of the bus at 3.0 km/h relative to the bus, while the bus travels south at 15 km/h. The passenger's velocity relative to the road is: (a) 18 km/h[N] (b) 18 km/h[S] (c) 12 km/h[N] (d) 12 km/h[S]arrow_forward*2-20. If o = 45°, F = 5 kN, and the resultant force is 6 kN directed along the positive y axis, determine the required magnitude of F, and its direction 6.arrow_forwardA boat travels on a heading of 335o at a constant speed of 28 km/h relative to the water. If the current is 18 km/h with a heading of 60o , what is the velocity of the ship and its bearing?arrow_forward
- A motorboat is crossing a river that flows eastward at a speed of 5 kph. If the boat needs to maintain its northward course and a speed of 10kph relative to an observer standing on the river bank, what should be its velocity relative to the river?arrow_forwardThe driver of a motorboat that can move at 10 m/s in still water wishes to travel directly across a narrow strait in which the current flows at 7.0 m/s. At what angle upstream should the driver head the boat? 1.0 degree 36.9 O None of these O degree 44.42 O degree 53.13 O degree 30 O aty ialarrow_forwardA swimmer heading directly across a river 200 m wide reaches the opposite bank in 6 min 40s, during which time she is swept downstream 480 m. (a) How fast can she swim in still water? (b) What is the speed of the current?arrow_forward
- A river has a steady speed of 0.400 m/s. A student swims upstream a distance of 1.00 km and swims back to the (a) If the student can swim at a speed of 1.10 m/s in still water, how long does the trip take? (b) How much time is required in still water for the same length swim? (c) Intuitively, why does the swim take longer when there is a current?arrow_forwardA swimmer in a river is chatting with a friend who is on the river bank. If the river current is flowing at 0.112 mph to the east, with what velocity relative to the water would the swimmer need to swim in order to remain in place relative to the person on shore? O 0.224 mph to the west O 0.112 mph to the east O 0.112 mph to the west O 0.112 mph to the north Need Help? Read Itarrow_forwardif you are riding on a train that speeds past another train moving in the same direction on an adjacent track it appears that that other train is moving backward.why?arrow_forward
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