A lift is coming from 8th floor and is just about to reach 4th floor. Taking ground floor as origin and positive direction upwards for all quantities, which one of the following is correct? (a) x < 0, v < 0, a > 0 (b) x > 0, v < 0, a < 0 (c) x > 0, v < 0, a > 0 (d) x > 0, v > 0, a < 0

A lift is coming from 8th floor and is just about to reach 4th floor. Taking ground floor as origin and positive direction upwards for all quantities, which one of the following is correct? (a) x < 0, v < 0, a > 0 (b) x > 0, v < 0, a < 0 (c) x > 0, v < 0, a > 0 (d) x > 0, v > 0, a < 0

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter7: Energy Of A System

Section: Chapter Questions

Problem 7.13P: Lei B = 5.00 m at 60.0. Let the vector C have the same magnitude as A and a direction angle greater...

See similar textbooks

Related questions

Q: Vector A = 3.0î – 4.0k. (a) Construct a unit vector that 3 %3D is parallel to A. (b) Construct a…

A: Given,A→ = 3.0 i^ - 4.0 k^

Q: (a) In unit-vector notation, what is the sum of á (3.3 m )î + (3.6 m )ĵ and B = (- n )i+(6.9 m ).…

Q: A vector has components Ax = 12 m and Ay = 5.0 m. What is the magnitude of vector ?

A: Given the x and y components of vector A.Ax = 12 m and Ay = 5 m

Q: Given two vectors A = - 2.00 + 3.00ĵ + 4.00 k and B = 3.00 î+ 1.00 – 3.00 k, (a) find the magnitude…

A: We have to calculate the magnitude of each vector. Given Data, A→=-2.0 i^+3.0 j^+4.0 k^B→=3.0 i^+1.0…

Q: 4. Two vectors are given as follows: A= -2i + 5j- 4k B- -3i + 47 + 2k What is the magnitude of…

Q: If a vector W has components Wx--3.0 and Wy-4.0, what is the magnitude of the vector? Make sure your…

A: Given vector W has x-component wx = -3.0 And y-component wy = 4.0

Q: Two vectors are given by a = 2.5î + 5.6ĵ and b = 7.9î + 2.4ĵ. Find (a) a × b ,(b) đ b,(c) (a + b). b…

Q: What is the sum of the following four vectors in (a) unit-vector notation, and as (b) a magnitude…

Q: Given two vectors A= -2.0Oi + 3.00j +4.00k and B= 3.00i + 1.0oj -3.00k, do the following. (a) Find…

Q: Given Five vectors whose lengths and direction – senses are as follows: Aa is 1.5 inch long and 90…

Q: wo vectors are given by đ = 1.3i + 1.8) and 3 = 7.9î + 1.6). Find (a) à x B (b) ở - B.(c)( a + B).…

Q: (3.3 m )î + (3.6 m )ĵ and b = (- 11.0 m )i+(6,9m (a) In unit-vector notation, what is the sum of a…

A: Given that:a→=(3.3m)i^+(3.6m)j^b→=(-11m)i^+(6.9m)j^IT is required to find the sum of (a→+b→), the…

Q: What is the sum of the following four vectors in (a) unit-vector notation, and as (b) a magnitude…

Q: If a vector W has components W=-3.0 and Wy=4.0, what is the magnitude of the vector? Make sure your…

A: the vector W has the horizontal and vertical components which can be given as Wx=3.0 Wy=4.0…

Q: Vector Á has a magnitude of 5.00 units, and vector B has a magnitude of 9.00 units. The two vectors…

Q: In the product F = qv(x) B, take q = 5, v= 2.0i + 4.0j + 6.0k and F = −30.0i −60.0j + 50.0k What…

A: Given, F=qv(x)Bq=5,v=(2i^+4j^+6k^)F=(-30i^+-60j^+50k^)Bx=By…

Q: Let vector a = <5,2,4> and vector b = <-4,2,0>. Find vector 2a+3b

A: The objective of the question is to find the resultant vector of 2a+3b, where a and b are given…

Q: Vector A can be expressed in (i,j,k) notation as 5.0i - 4.0j, and vector B as -7.0i + 2.0j.…

Q: A vector A>has a length of 6.1 m and points in the negative xdirection. Find (a) the x component…

Q: Two vectors are given by a = 9.7î + 4.6) and B = 9.21 + 9.5). Find (a) a x (b) a - B.()( 7 + ).. %3D…

A: As per our company guidelines we are supposed to answer ?️only first 3 sub-parts. Kindly repost…

Q: The force F has a magnitude of 590 N. Express F as a vector in terms of the unit vectors i and j.…

A: Given: The magnitude of the force is 590 N. The angle made by force F with the x-axis in the clock…

Q: A vector A has components Ax = −3.00 m and Ay = 6.00 m. Find the magnitude (in m) and the…

A: Given,

Q: An unfortunate accident occurred on the toll way. A driver accidentally passed through a faulty…

A: The taken time is,

Q: The scalar product of vector Ã = -31 +53 and vector B is 1. Which of the following is vector B A ? ○…

A: A→ = -3i^+5j^A→·B→ = 1

Q: Two vectors, and lie in the xy plane. Their magnitudes are 4.82 and 4.69 units, respectively, and…

Q: Figure E1.43 30.0° (a) Is the vector (î+ĵ+ k) a unit vector? Jus- tify your answer. (b) Can a unit…

Q: Two vectors are given by a 9.0î + 8.0ĵ and b = a 6.7î + 2.6ĵ. Find (a)|ã × b], (b) à · b, (c) a +…

Q: Vector vec (A) has magnitude 4.00 units; vector vec (B) has magnitude 4.50 units. The angle between…

Q: Two vectors, and lie in the xy plane. Their magnitudes are 4.26 and 6.04 units, respectively, and…

Q: Three vectors are given by a = -2.00 + (2.00)j + (2.00) k, b = 1.00 + (3.00)j + (3.00) k, and 7 =…

Q: Given two vectors A= -2.00i + 3.00j +4.00k and B= 3.00i + 1.0oj -3.00k, do the following. (a) Find…

A: solution:

Q: A vector has components Ax = −5.00 m and Ay = 9.00 m. Find (a) the magnitude and (b) the direction…

A: Ax = −5.00 m Ay = 9.00 m

Q: What is the sum of the following four vectors in (a) unit-vector notation, and as (b) a magnitude…

A: A→=(2.00m)i^+(3.00m)j^ B→= 4.00 m, at 65.0° = 4 ×[ cos65oi^ + sin65oj^]= 1.69i^ + 3.62j^ m…

Concept explainers

Scalars and Vectors

Scalars and Vectors are the classification of physical quantities that are used to denote various terms in physics.

Question

A lift is coming from 8th floor and is just about to reach 4th floor. Taking ground floor as origin and positive direction upwards for all quantities, which one of the following is correct?

(a) x < 0, v < 0, a > 0

(b) x > 0, v < 0, a < 0

(d) x > 0, v > 0, a < 0

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1 :Explanation for correct answer

VIEW

Step 2 :Explanation for wrong answers

VIEW

Step 3 :Conclusion

VIEW

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

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

can you plz solve (a) and (b) both question?
What is the sum of the following four vectors in (a) unit-vector notation, and as (b) a magnitude and (c) an angle? Positive angles are counterclockwise from the positive direction of the x axis; negative angles are clockwise. A→=(2.00⁢m)î+(3.00⁢m)ĵB→ = 4.00 m, at 65.0°C→=(-4.00⁢m)î-(6.00⁢m)ĵD→ = 5.00 m, at -235°
Only D please
Two vectors are given by A = 3 î + 4 ĵ and B = -1 î + ĵ. Find the angle between A and B.
Find the unit vector of the following vectors using the component method.
Can you answer question M?
3
What is the sum of the following four vectors in (a) unit-vector notation, and as (b) a magnitude and (c) an angle? Positive angles are counterclockwise from the positive direction of the x axis; negative angles are clockwise. Ā = (2.00m + (3.00m A + (3.00 m / = 4.00 m, at 65.0° -4.00 m 6.00 m = 5.00 m, at -235° (a) Number -3.17 4.71 Units m (b) Number 5.67 Units (c) Number Units ° (degrees) -33.94197699
Complete and systematic solution
Three vectors are given by a = -2.00 + (2.00)j + (2.00) k, b = 1.00 + (3.00)j + (3.00) k, and 7 = -1.00 + (2.00) + (-3.00) Â. Find (a) à · (b×7)., (b) à · (7+). (c) x-component, (d) y-component, and (e) z- component of ax (+) respectively. (a) Number i (b) Number (c) Number (d) Number i (e) Number i Units Units Units Units Units < <
What is the sum of the following four vectors in (a) unit-vector notation, and as (b) a magnitude and (c) an angle? Positive angles are counterclockwise from the positive direction of the x axis; negative angles are clockwise. À = (2.00 m )i + (3.00 m )} B = 4.00 m, at 65.0⁰ 7 = ( - 4.00 m D = 5.00 m, at -235⁰ ¹)ì – (6.00 m )Ĵ
You are given two vectors A = -3.00i +7.00ĵ and B= 8.00i + 2.00j. Let counterclockwise angles be positive.