Question Detail

PHY 101 Kinematics in Two Dimensions Objective Question
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Question

In two-dimensional motion, the position of a particle is described by which of the following?
Options
A A scalar quantity like distance.
B A vector quantity called the position vector.
Correct Answer
C Only its x-coordinate.
D Only its y-coordinate.
Correct Answer

Option B is the correct answer.

Detailed Explanation

To completely specify the location of a particle in a plane, both its x and y coordinates relative to an origin are needed. These are combined into a single vector quantity, r = xi + yj, known as the position vector.

Hint

How many coordinates are needed to define a point on a flat surface? How is this often represented mathematically as one entity?

Question Info

Course: PHY 101
Topic: Kinematics in Two Dimensions
Type: Objective
Difficulty: Not specified
Question 614 of 1250
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