a. The mathematical expression 6÷2(1+2) was given to a boy and a girl to solve. Prove by explaining that the boy's answer was 1 and that of the girl was 9. 4 b. When x=9 and y = 2, an expression 2x/3y-1 produced two different answers, 2 and 11. Explain why two different answers could be arrived at and how can this ambiguity be cleared? c. The velocity of a car, accelerating at uniform acceleration a between two points, is given by v=u+at , where u is its velocity when passing the first point and i is the time taken to pass between the two points. If v=21m/s when 1= 3.5s and v= 33m/s when t= 6.1s , explain by the method of determinants how to obtain the values of u and a, each correct to 4 significant figures

a. The mathematical expression 6÷2(1+2) was given to a boy and a girl to solve. Prove by explaining that the boy's answer was 1 and that of the girl was 9. 4 b. When x=9 and y = 2, an expression 2x/3y-1 produced two different answers, 2 and 11. Explain why two different answers could be arrived at and how can this ambiguity be cleared? c. The velocity of a car, accelerating at uniform acceleration a between two points, is given by v=u+at , where u is its velocity when passing the first point and i is the time taken to pass between the two points. If v=21m/s when 1= 3.5s and v= 33m/s when t= 6.1s , explain by the method of determinants how to obtain the values of u and a, each correct to 4 significant figures

Name: Question 5a. The mathematical expression 6+ 2(1+2) was given to a boy
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Description: Question 5a. The mathematical expression 6+ 2(1+2) was given to a boy and a girl tosolve. Prove by explaining that the boy's answer was 1 and that of thegirl was 9.4b. When x=9 and y = 2, an expression 2x/3y–1 produced two differentanswers, 2 and 11

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter1: Introduction And Vectors

Section: Chapter Questions

Problem 71P

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Displacement, Velocity and Acceleration

In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.

Linear Displacement

The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.

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