Physics: Principles with Applications
7th Edition
ISBN: 9780321625922
Author: Douglas C. Giancoli
Publisher: Addison-Wesley
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Problem 8. A fast duck is flying 20i + 40j Įmi/h at the same altitude as a
slow airplane flying with a velocity of ( -80i + 40j
mi/h. How fast and in what
direction is the duck moving relative to the airplane?
a) 100 mi/h, along +î
b) 100 mi/h, along -î
c) 150 mi/h, along +j
d) 150 mi/h, along -ĵ
e) 200 mi/h, along +î
Romeo is throwing pebbles gently up to Juliet's window,
and he wants the pebbles to hit the window with only a
horizontal component of velocity. He is standing at the
edge of a rose garden 8.0 m below her window and 8.5 m
from the base of the wall (Fig. 3–49). How fast are the
pebbles going when they hit her window?
8.0 m
FIGURE 3-49
Problem 56.
e 8.5 m
Raindrops make an angle 0 with the vertical when viewed
through a moving train window (Fig. 3–52). If the speed
of the train is vr, what is the speed of the raindrops in the
reference frame of
the Earth in which
they are assumed to
fall vertically?
FIGURE 3-52
Problem 61.
Chapter 3 Solutions
Physics: Principles with Applications
Ch. 3 - A small heavy box of emergency supplies is dropped...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 - Give several examples of an object's motion in...Ch. 3 - Can the displacement vector for a particle moving...Ch. 3 - During baseball practice, a player hits a very...Ch. 3 - If V =V 1+V 2 , is V necessarily greater than V1,...Ch. 3 - Two vectors have length V1=3.5km and V2=4.0km ....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 - Prob. 10QCh. 3 - How could you determine the speed a slingshot...Ch. 3 - Prob. 12QCh. 3 - Prob. 13QCh. 3 - Prob. 14QCh. 3 - A projectile is launched at an upward angle of 300...Ch. 3 - Prob. 16QCh. 3 - Two cannonballs, A and B, are fired from the...Ch. 3 - 18. A person sitting in an enclosed train car,...Ch. 3 - Prob. 19QCh. 3 - Prob. 20QCh. 3 - Prob. 21QCh. 3 - Prob. 1MCQCh. 3 - Prob. 2MCQCh. 3 - Prob. 3MCQCh. 3 - Prob. 4MCQCh. 3 - A baseball player hits a ball that soars high into...Ch. 3 - Prob. 6MCQCh. 3 - Prob. 7MCQCh. 3 - Which of the three kicks in Fig. 3-32 is in the...Ch. 3 - A baseball is hit high and far. Which of the...Ch. 3 - Prob. 10MCQCh. 3 - Prob. 11MCQCh. 3 - A car travels 10 m/s east. Another car travels 10...Ch. 3 - A car is driven 225 km west and then 98 km...Ch. 3 - A delivery truck travels 21 blocks north, 16...Ch. 3 - If Vx=9.80 units and Vy=6.40 units, determine the...Ch. 3 - Graphically determine the resultant of the...Ch. 3 - V is a vector 24.8 units in magnitude and points...Ch. 3 - Vector V is 6.6 using long and points along the...Ch. 3 - Figure 3-33 shows two vectors, A and B , whose...Ch. 3 - Prob. 8PCh. 3 - Three vectors are shown in Fig. 3-35 Q. Their...Ch. 3 - (a) given the vectors A and B shown in Fig. 3-35,...Ch. 3 - Determine the vector AC , given the vectors A and...Ch. 3 - For the vectors shown in Fig. 3—35, determine (a)...Ch. 3 - Prob. 13PCh. 3 - Prob. 14PCh. 3 - Prob. 15PCh. 3 - Prob. 16PCh. 3 - 17. (l) A tiger leaps horizontally from a...Ch. 3 - 18. (l) A diver running 2.5 m/s dives out...Ch. 3 - Prob. 19PCh. 3 - Prob. 20PCh. 3 - 21. (Il) A ball thrown horizontally at 12.2 m/s...Ch. 3 - (Il) A football is kicked at ground level with a...Ch. 3 - Prob. 23PCh. 3 - You buy a plastic dart gun,and being a clever...Ch. 3 - Prob. 25PCh. 3 - Extreme-sports enthusiasts have been known to jump...Ch. 3 - A projectile is fired with an initial speed of...Ch. 3 - An athlete performing a long jump leaves the...Ch. 3 - A shot-putter throws the "shot" (mass = 7.3 kg)...Ch. 3 - Prob. 30PCh. 3 - A rescue plane wants to drop supplies to isolated...Ch. 3 - Suppose the rescue plane of Problem 31 releases...Ch. 3 - Prob. 33PCh. 3 - Prob. 34PCh. 3 - Suppose the kick in Example 3—6 is attempted 36.0...Ch. 3 - Revisit Example 3—7, and assume that the boy with...Ch. 3 - A stunt driver wants to make his car jump over 8...Ch. 3 - Prob. 38PCh. 3 - Huck Finn walks at a speed of 0.70 m/s across his...Ch. 3 - Determine the speed of the boat with respect to...Ch. 3 - Two planes approach each other head-on. Each has a...Ch. 3 - A passenger on a boat moving at 1.70 m/s on a...Ch. 3 - A person in the passenger basket of a hot-air...Ch. 3 - 44. (Il) An airplane is heading due south at a...Ch. 3 - In what direction should the pilot aim the plane...Ch. 3 - 46. (Il) A swimmer is capable of swimming 0.60 m/s...Ch. 3 - (a) At what upstream angle must the swimmer in...Ch. 3 - 48. (Il) A boat, whose speed in still water is...Ch. 3 - Prob. 49PCh. 3 - Prob. 50PCh. 3 - Two cars approach a street comer at right angles...Ch. 3 - Prob. 52GPCh. 3 - Prob. 53GPCh. 3 - A light plane is headed due south with a speed...Ch. 3 - Prob. 55GPCh. 3 - Prob. 56GPCh. 3 - 57. Apollo astronauts took a "nine iron" to the...Ch. 3 - 58. (a) A long jumper leaves the ground at above...Ch. 3 - Prob. 59GPCh. 3 - Prob. 60GPCh. 3 - Prob. 61GPCh. 3 - Prob. 62GPCh. 3 - Prob. 63GPCh. 3 - Prob. 64GPCh. 3 - When Babe Ruth hit a homer over the 8.0-m-high...Ch. 3 - At serve, a tennis player aims to hit the ball...Ch. 3 - Prob. 67GPCh. 3 - Prob. 68GPCh. 3 - 69. A boat can travel 2.20 m/s in still water. (a)...Ch. 3 - Prob. 70GPCh. 3 - Prob. 71GPCh. 3 - A rock is kicked horizontally at 15 m/s from a...Ch. 3 - Prob. 73GPCh. 3 - A ball is shot from the top of a building with an...Ch. 3 - If a baseball pitch leaves the pitcher's hand...
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- 1 6) Bob wants to measure the height of a cliff. Unfortunately, he only has with him a stopwatch and a baseball. Luckily, he has a plan. While Jane stays at the bottom of the cliff, Bob climbs up the cliff face. When he reaches the top, he throws the baseball as hard as he can, with a velocity of 33.7 m/s at an angle of 22.5°. Some time later, Jane shouts that the ball landed 127 m from the bottom of the cliff. a) If Bob threw the ball from 1.50 m above the clifftop, how high is the cliff itself? stv MacBook Pro X End N Camera Off Live Photo & %3D 6. 8. 6. de Y U P. %3D J. K トarrow_forward2-10. Determine the magnitude of the resultant foree and its direction, measured counterclockwise from the positive x axis 500 Ibarrow_forward(II) A passenger on a boat moving at 1.70 m/s on a still lake walks up a flight of stairs at a speed of 0.60 m/s, Fig. 3–43. The stairs are angled at 45° pointing in the direction of motion as shown. What is the velocity of the passenger rel- ative to the water? 0.60 m/s y 45° V = 1.70 m/s FIGURE 3-43 Problem 42.arrow_forward
- (III) Two cars approach a street corner at right angles to each other (Fig. 3–47). Car 1 travels at a speed relative to Earth vIE = 35 km/h, and car 2 at v2E = 55 km/h. What is the relative 2 velocity of car 1 as seen by car 2? What is the velocity of car 2 relative to car 1? 2E 1E FIGURE 3-47 Problem 51.arrow_forwardTwo parallel rail tracks run north-south. Train A moves north with a speed of 59 km h-1 and train B moves south with a speed of 85 km-1. What is the(a) velocity of B with respect to A ?,(b) velocity of ground with respect to B ?,(c) velocity of a monkey running on theroof of the train A against its motion(with a velocity of 17 km h-1 withrespect to the train A) as observed bya man standing on the ground ?arrow_forwardV:EE IAr O O MOEO O 40all OMANTEL B/s Two stones A and B are thrown الوقت المتبقی 0:28:42 aneously from the two buildings of height 10 m and 20 m, respectively as shown below. Stone A is thrown with an initial speed of 10v2 m/s at an angle of 45 degrees with horizontal, while stone B is thrown horizontally with speed 10 m/s.lf they hit each other in air at t = 1s, then the distance d between the :buildings is 10m/s 10V2m/s 45° 20m 10m إختر أحد الخيارات m 7.0 a m 20 .b m 15 .c m 3.0 darrow_forward
- 9) Generic Villain, in an airplane, is chasing Generic Hero who is driving a car. The speed of the airplane is 147 m/s and the speed of the car is 51.0 m/s. If the Villain, at an altitude of 1.00E2 m, wants to drop a bomb on the Hero (and assuming the airplane is in level flight) how far should they be away from the car when they do so? (If you care, the hero gets away with some generic special effects and, you know, turning...) (434 m)arrow_forward12-234. At a given instant the football player at A throws a football C with a velocity of 20 m/s in the direction shown. Determine the constant speed at which the player at B must run so that he can catch the football at the same elevation at which it was thrown. Also calculate the relative velocity and relative acceleration of the football with respect to B at the instant the catch is made. Player B is 15 m away from A when A starts to throw the football. 20 m/s 60° B. -15 marrow_forwardIf the velocity of a particle is zero, can the particle's acceleration be zero? Give an example. If the velocity of a particle is not zero, can the particle's acceleration be zero? Give an example.arrow_forward
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