7. A speedboat moves on a lake with initial velocity vector vix = 8.51 m/s and v1,y =-2.47 m/s, then accelerates for 6.97 s at an average acceleration of aav x =-0.105 andтay = 0.1064. What are the speedboats final speed and direction?

Given: The Initial velocity of the speedboat v1,x = 8.51 m/s and v1,y = -2.47 m/s Time for the…

Answered: 7. A speedboat moves on a lake with…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

6. For the first five seconds after take-off the rocket engine can deliver a net acceleration a with magnitude a ct2 + b, where c= 6.66 m/sª and b = 18.1 m/s?. (Note: since this is net acceleration, we include the contribution of gravity into this acceleration) What is the speed of the rocket 1.65 seconds after take off ?
A speedboat moves on a lake with initial velocity vector v1x = 9.33 m/s and v1.y = -2.51 m/s, then accelerates for 5.45 s at an average acceleration of aavx = -0.106 m/s² and aav.y = 0.109 m/s². What are the components of the speedboat's final velocity, v2.x and v2.y? U2,x m/s U2.y m/s Find the speedboat's final speed.
2/67 A roofer tosses a small tool to the ground. What min- imum magnitude vo of horizontal velocity is required to just miss the roof corner B? Also determine the distance d. -2.4 m- T 1.2 m 0.9 m 3 m VO AAA! Problem 2/67 B a to C
4. There are two frogs named Eroggy and Jumpy. They jumped from the top of a vertical cliff. Froggy just drops and reaches the ground in 3.50 s, while Jumpy jumps horizontally ((bida bida siya, char! Hahall with an initial speed 95 cm/s. a. How far from the base of the cliff will Jumpy hit the ground? b. How high is the vertical cliff? c. If Jumpy jumps with an angle of 30 degrees with respect to the horizontal, what should be its initial velocity for it to land on the same spot as he did when he jumped horizontally?
1. Felipe kicks a rock off of a bridge that is 18 m high. He kicks the rock horizontally with a velocity of 7.8 m/s. How much time is the rock in the air? 207.4 mls g:0ay =-9.8 Viz18 Viy:0 Ay-8 AX: 14m 2. From the previous problem how far does the rock land from the bottom of the bridge?
vo= 424.6755m/s20.6m1S- 4 A football is kicked such that it reaches a maximum height of 15 m and returns to the ground. It travels a forward distance of 40 m. rnf 12.5 m/s and a vertical velocity of 40 m/s when Vo= 424.6755m/s 20.Cm1S. AA football is kicked such that it reaches a maximum height of 15 m and returns to the ground. a) What is the initial speed of the projectile? 4. b) 0 = 56.3°) V=2ghmak, b) What is the initial angle? hmax = Vo Sento Sune 2x9.8m3x1s (gm(SC.3099)1 tau@<1,5, B=tanli.s 94m's 0.83205)2 294 m2!s DI6923 tang=4x15mGom Yo 28 %3D 40m 40 0m hamar no = 56,309 5613 5. In the Olympic shotput event, an athlete throws the shot with an initial speed of 12.0 m/s at a 40.0° angle from the horizontal. The shot leaves her hand at a height of at y 1.80 m above the ground. The shot lands at y = 0. a) What is the time for the upward part of the motion only? b) What is the maximum height of the shot relative to the ground? c) What is the flight time? d) How far does the shot…
3. A jet plane has a takeoff speed of Vtakeoff = 60 m/s and can move along the runway at an average acceleration of 2.0 m/s². The runway is 1.5 km. a. Write out the 3 Kinetic equations. 2. v2-U2= Jas 3.5=uttata2 b. Write out the values of initial position, initial velocity, and acceleration. initial position uloity- a: 0.2m/s init.al aueleradion- How many seconds will it take for the plane to reach takeoff speed? С. d. How far will the plane have to travel to get to takeoff speed? e. will the plane be able to get to 60 m/s before it gets to the end of the runway?
6.
7. The height of a helicopter above the ground is given by h =20.0 t-5.0 t where h is in meters and t is in seconds. At t=1.00 s, the helicopter releases a small mailbag. a) What is speed of a mailbox before hint to the ground? b) How long mailbox in air? 8. Starting from rest at 5 m from origin, a small still ball's horizontal component of velocity is 90.0 mile/hour in a straight line in 10.0 s. Ball's acceleration is constant during the entire motion, what is ball's final position?
I see that an object has is decelerating, what does this tell me about A? A. Nothing at all, what i see has nothing to do with A B. A is a positive C. A is a negative D. A could be either, depending on the direction of the velocity Can I do the vertical part of a projectile motion problem separately from the horizontal part? A. Always. Horizontal motion is completely separate from vertical motion though they share time B. Never. C. Only under very special circumstances
1. A ball is thrown upwards with an initial velocity of ; = 44 m/s at an angle of above the horizontal. It travels a distance Ar = 75 m in the horizontal direction and lands at its original height. What is 0? (Hint 1: examine the ball's motion in both the x and y directions. Hint 2: you may need to use that sin(0) cos(0) = (1/2) sin(20). Hint 3: There are two solutions to this problem; try to find both.) Take g = 9.81 m/s² and show all your work.
A spring gun that is mounted at the edge of a 2.0-m-high table launches a steel ball at an angle of 230 above the horizontal with an initial speed of 7.0 m/s. What is the total time of flight of the steel ball? (Assume that g = 9.81 m/s2.) a. 0.80 s b. 0.60 s c. 0.40 s d. 1.0 s e. 1.2 s

SEE MORE QUESTIONS

Recommended textbooks for you

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

University Physics (14th Edition)

Physics

ISBN:

9780133969290

Author:

Hugh D. Young, Roger A. Freedman

Publisher:

PEARSON

Introduction To Quantum Mechanics

Physics

ISBN:

9781107189638

Author:

Griffiths, David J., Schroeter, Darrell F.

Publisher:

Cambridge University Press

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

University Physics (14th Edition)

Physics

ISBN:

9780133969290

Author:

Hugh D. Young, Roger A. Freedman

Publisher:

PEARSON

Introduction To Quantum Mechanics

Physics

ISBN:

9781107189638

Author:

Griffiths, David J., Schroeter, Darrell F.

Publisher:

Cambridge University Press

Physics for Scientists and Engineers

Physics

ISBN:

9781337553278

Author:

Raymond A. Serway, John W. Jewett

Publisher:

Cengage Learning

Lecture- Tutorials for Introductory Astronomy

Physics

ISBN:

9780321820464

Author:

Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden

Publisher:

Addison-Wesley

College Physics: A Strategic Approach (4th Editio…

Physics

ISBN:

9780134609034

Author:

Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field

Publisher:

PEARSON

SEE MORE TEXTBOOKS

7. A speedboat moves on a lake with initial velocity vector vx = 8.51 m/s and v1y = -2.47 m/s, then accelerates for 6.97 s at an average acceleration of aavx = -0.105 and avy = 0.106÷. What are the speedboats final speed and direction? s2