COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 7, Problem 82QAP
To determine
The final velocity vector of the birds just after the attack if the mass of a pigeon hawk is twice that of the pigeons it hunts.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
In the plane forces system, F1 = 3 kN, F2 = 6 kN and F3 = 10 kN. The direction of the force F3 is
tan a = %, the moment arm of the force couple is di = 2 m and the action points of the forces are
A2 (-2,5), A3 (-4,-4). Find the resultant force R as a vector and calculate the line of action.
y
F2
A2
H.
F3
A3
Determine the resultant of the force system
shown in fig. and the angle e which the
* ?resultant makes with x-axis
50 kN
30 kN
20°
20°
60 kN
40°
40 kN
R= 54.469 kN O= 50.19
R= 54.469 kN O= 25.1 O
R= 27.234 kN O= 50.19
R= 27.234 kN O= 25.1 O
A bartender slides a beer mug at 1.9 m/s towards a customer at the end of a frictionless bar that is 1.8 m tall. The customer makes a grab for the mug and misses, and the mug sails off the end of the bar.
(a) How far away from the end of the bar does the mug hit the floor? m(b) What are the speed and direction of the mug at impact?
speed
m/s
direction
° below the horizontal
Chapter 7 Solutions
COLLEGE PHYSICS
Ch. 7 - Prob. 1QAPCh. 7 - Prob. 2QAPCh. 7 - Prob. 3QAPCh. 7 - Prob. 4QAPCh. 7 - Prob. 5QAPCh. 7 - Prob. 6QAPCh. 7 - Prob. 7QAPCh. 7 - Prob. 8QAPCh. 7 - Prob. 9QAPCh. 7 - Prob. 10QAP
Ch. 7 - Prob. 11QAPCh. 7 - Prob. 12QAPCh. 7 - Prob. 13QAPCh. 7 - Prob. 14QAPCh. 7 - Prob. 15QAPCh. 7 - Prob. 16QAPCh. 7 - Prob. 17QAPCh. 7 - Prob. 18QAPCh. 7 - Prob. 19QAPCh. 7 - Prob. 20QAPCh. 7 - Prob. 21QAPCh. 7 - Prob. 22QAPCh. 7 - Prob. 23QAPCh. 7 - Prob. 24QAPCh. 7 - Prob. 25QAPCh. 7 - Prob. 26QAPCh. 7 - Prob. 27QAPCh. 7 - Prob. 28QAPCh. 7 - Prob. 29QAPCh. 7 - Prob. 30QAPCh. 7 - Prob. 31QAPCh. 7 - Prob. 32QAPCh. 7 - Prob. 33QAPCh. 7 - Prob. 34QAPCh. 7 - Prob. 35QAPCh. 7 - Prob. 36QAPCh. 7 - Prob. 37QAPCh. 7 - Prob. 38QAPCh. 7 - Prob. 39QAPCh. 7 - Prob. 40QAPCh. 7 - Prob. 41QAPCh. 7 - Prob. 42QAPCh. 7 - Prob. 43QAPCh. 7 - Prob. 44QAPCh. 7 - Prob. 45QAPCh. 7 - Prob. 46QAPCh. 7 - Prob. 47QAPCh. 7 - Prob. 48QAPCh. 7 - Prob. 49QAPCh. 7 - Prob. 50QAPCh. 7 - Prob. 51QAPCh. 7 - Prob. 52QAPCh. 7 - Prob. 53QAPCh. 7 - Prob. 54QAPCh. 7 - Prob. 55QAPCh. 7 - Prob. 56QAPCh. 7 - Prob. 57QAPCh. 7 - Prob. 58QAPCh. 7 - Prob. 59QAPCh. 7 - Prob. 60QAPCh. 7 - Prob. 61QAPCh. 7 - Prob. 62QAPCh. 7 - Prob. 63QAPCh. 7 - Prob. 64QAPCh. 7 - Prob. 65QAPCh. 7 - Prob. 66QAPCh. 7 - Prob. 67QAPCh. 7 - Prob. 68QAPCh. 7 - Prob. 69QAPCh. 7 - Prob. 70QAPCh. 7 - Prob. 71QAPCh. 7 - Prob. 72QAPCh. 7 - Prob. 73QAPCh. 7 - Prob. 74QAPCh. 7 - Prob. 75QAPCh. 7 - Prob. 76QAPCh. 7 - Prob. 77QAPCh. 7 - Prob. 78QAPCh. 7 - Prob. 79QAPCh. 7 - Prob. 80QAPCh. 7 - Prob. 81QAPCh. 7 - Prob. 82QAPCh. 7 - Prob. 83QAPCh. 7 - Prob. 84QAPCh. 7 - Prob. 85QAP
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Consider the vectors A = 2.0i - 4.0j + k, B = 3.0i + 4.0j + 10.0k, C = -3.0i - 4.0j, D = -3.0i + 4.0j, E = -2.0i + 3.0j + 2.0k, F = -9.0j. a)What is A × B? Give your answer in the form of "ai + bj + ck". b)What is B × A? Give your answer in the form of "ai + bj + ck". c)What is C × D? Give your answer in the form of "ai + bj + ck". d)What is F × E? Give your answer in the form of "ai + bj + ck".arrow_forwardH = 0 d= 10 cm red Vo 45° 45° Voluearrow_forwardB Consider the two vectors given in the figure, what is their SUM in the unit vector notation? 4i-2j 2i-6j 4i+2j 4i+6jarrow_forward
- Problem 6: Consider the two vectors, A = -4.93 î+ -2.99 Ĵ and B = -1.2 î+ -4.07 ĵ. What is the direction of C = A + B expressed in degrees below the negative x axis?] Zarrow_forwardThe lob in tennis is an effective tactic when your opponent is near the net. It consists of lofting the ball over his head, forcing him to move quickly away from the net (see the drawing). Suppose that you loft the ball with an initial speed of 15.0 m/s at an angle of 50.0° the horizontal. At this instant your opponent is 10.0 m away from the ball. He begins moving away from you 0.45 s later, hoping to reach the ball and hit it back at the moment that it is 2.10 m above its launch point. With what minimum average speed must he move? (Ignore the fact that he can stretch, so that his racket can reach the ball before he does.) 15.0 m/s 2.10 m 50.0 10.0 m Number i Unitsarrow_forwardGeorgia, standing on the back of the pick-up truck, wants to throw her last piece of balut to her mortal enemy, Emma. before the truck started moving, the two women are separated by a distance of 2 m. For two seconds, the truck uniformly accelerated until it reached a velocity of 4 m/s which it then maintained. With hatred, Georgia throws the last piece of balut with a velocity of 12.5 m/s at an angle of 40° from horizontal, measured relative to the truck. If she makes the throw 2.8 seconds after the truck started moving, will she be able to hit Emma? Note that Emma is at rest due to exhaustion from their earlier fight and she cannot dodge the balut. Set your origin at point A. Neglect air resistance.arrow_forward
- 1) Calvin throws a rock at Susie from his hideout in a tree 4.0 m above the lawn. The rock is thrown at a speed of 5.0 m/s and an angle of 30° BELOW the horizontal. Fortunately, for all parties involved, Calvin misses Susie and the rock hits the ground. (whew!) How far from the base of the tree does the rock land? 2) A 500 g box is being pulled by a rope across a level surface. The rope is horizontal. The tension in the rope is 10 N to the right, and there is a 7 N kinetic friction force acting on the box. Draw a free body diagram for the box. What is the net force acting on the box in the x-direction? What is the net force acting on the box in the y-direction? C. d. What is the acceleration of the box? (magnitude and direction) e. One of the forces on your free body diagram should be the normal force (make sure it is there!). For the normal force, what is the object, and what is the agent? f. Is there a Newton's third law force pair associated with the normal force acting on the box?…arrow_forwardan object moves along the x axis as shown in the following figure at which point or points is the magnitude of its velocity at a minimum? explain your answer.arrow_forwardThree points are plotted in the x, y, & z-plane as follows: A(-1,0,3); B(4, 2, 0); C(0,-1,-1). Establish a position vector from point A to point B. Please include a free-body diagram if possible. Choices are as follows: a)- 0.78i + 0.59j - 0.20kb)- 0.78i - 0.59j - 0.20kc)0.78i - 0.59j + 0.20kd)0.81i - 0.32j - 0.49ke)- 0.24i + 0.24j + 0.94kf)0.24i + 0.24j - 0.94kg)0.81i + 0.32j - 0.49kh)- 0.24i - 0.24j + 0.94ki)- 0.81i - 0.32j + 0.49kj)0.24i - 0.24j - 0.94kk)0.78i + 0.59j + 0.20kl)- 0.81i + 0.32j + 0.49karrow_forward
- Problem 6: Consider the two vectors, A = -4.93 î+-2.99 Ĵ and B = -1.2 î+ -4.07. ) What is the magnitude of Ď= A - B?arrow_forwardPlease answer this with in 30 mins ! I will upvote ! Problem: A shot-putter throws an iron ball (7.26 kg) forward (due East). The initial velocity of the ball is 12.0 m/s, with respect to shot-putter’s hand, in a direction of 25.0° above the horizontal while the shot-putter also moves forward horizontally (due East) with a velocity of 3.50 m/s. At the moment of throwing the ball, his hand is 1.90 m above the ground. How long is the ball in the air after it leaves the shot-putter’s hand?arrow_forwardA student launches a small rocket which starts from rest at ground level. At a height of h = 1.8 km the rocket reaches a speed of vf = 342 m/s. At that height the rocket runs out of fuel, so there is no longer any thrust propelling it. Take the positive direction to be upward in this problem B: After the rocket's engine turns off at a height of h = 1.8 km, it continues to move upward due to the velocity that it reached. What is the rocket's acceleration, in meters per second squared, during the period from engine shutoff until it returns to the ground? Ignore air resistance. C: Calculate the maximum height, in meters above ground level, that the rocket reaches.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Momentum | Forces & Motion | Physics | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=DxKelGugDa8;License: Standard YouTube License, CC-BY