Homework Help is Here – Start Your Trial Now!
Science
Physics
7. Find the dot product between a force of 450 N directed at 20° north of east and a displacement of 15 m to the north.

7. Find the dot product between a force of 450 N directed at 20° north of east and a displacement of 15 m to the north.

College Physics
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
icon
Related questions
Topic Video
Question

I need help with question 7?

11. 9. 10. 7. 8. Find the dot product between a force of 450 N directed at 20° north of east and a displacement of 15 m to the north. If a 2.5 kg object falls from a height of 2.0 m it will have a kinetic energy of 50 J just before it hits the ground. If the same object falls from a height of 4.0 m above the ground, the kinetic energy it has just before hitting the ground will be K2.0 a) 50 J b) 71 J c) 100 J d) 200 J In the same situations as the previous question, if the time for the object to fall from a height of 2.0 m is t2.0, then the time to fall from a height of 4.0 m will be da b) t4.0 = t2.0 a) t4.0 = √2t2.0 c) t4.0 = 2t2.0 1) + d) t4.0 AVTOM as A spring attached to the ceiling has a large bucket hanging from it. When the bucket is empty, the handle of the bucket ends up 0.60 m from the ceiling. A 10kg pumpkin is put in the bucket which stretches the spring. The handle of the bucket ends up 1.6 m from the ceiling when the system comes to rest. = apballgo sull A 570 g cart has really good wheels and is placed on a ramp that makes an angle of 24° with the horizontal. A string is tied from one end of the cart to the top of the ramp, and the string is parallel to the ramp. (See the image to the right.) (a) Draw a free body diagram for the pumpkin once it has come to rest in this situation and label the size of the forces. (b) How far from the co ceiling will the bucket handle be when a 15 kg pumpkin is placed in the bucket instead of a 10 kg one? How much tension will there be in the string when the cart is sitting motionless on the ramp? tension T = m 4. t2.0 0 VA Si bil qabulbnou
Transcribed Image Text:11. 9. 10. 7. 8. Find the dot product between a force of 450 N directed at 20° north of east and a displacement of 15 m to the north. If a 2.5 kg object falls from a height of 2.0 m it will have a kinetic energy of 50 J just before it hits the ground. If the same object falls from a height of 4.0 m above the ground, the kinetic energy it has just before hitting the ground will be K2.0 a) 50 J b) 71 J c) 100 J d) 200 J In the same situations as the previous question, if the time for the object to fall from a height of 2.0 m is t2.0, then the time to fall from a height of 4.0 m will be da b) t4.0 = t2.0 a) t4.0 = √2t2.0 c) t4.0 = 2t2.0 1) + d) t4.0 AVTOM as A spring attached to the ceiling has a large bucket hanging from it. When the bucket is empty, the handle of the bucket ends up 0.60 m from the ceiling. A 10kg pumpkin is put in the bucket which stretches the spring. The handle of the bucket ends up 1.6 m from the ceiling when the system comes to rest. = apballgo sull A 570 g cart has really good wheels and is placed on a ramp that makes an angle of 24° with the horizontal. A string is tied from one end of the cart to the top of the ramp, and the string is parallel to the ramp. (See the image to the right.) (a) Draw a free body diagram for the pumpkin once it has come to rest in this situation and label the size of the forces. (b) How far from the co ceiling will the bucket handle be when a 15 kg pumpkin is placed in the bucket instead of a 10 kg one? How much tension will there be in the string when the cart is sitting motionless on the ramp? tension T = m 4. t2.0 0 VA Si bil qabulbnou
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Mechanical Work done
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.
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
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…
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