Question Detail

PHY 101 Kinematics in One Dimension Objective Question
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Question

The instantaneous speed of a particle is defined as the
Options
A magnitude of its instantaneous velocity.
Correct Answer
B slope of its velocity-time graph.
C area under its acceleration-time graph.
D magnitude of its average velocity.
Correct Answer

Option A is the correct answer.

Detailed Explanation

Instantaneous speed is a scalar quantity. It is the magnitude (or absolute value) of the instantaneous velocity vector, which ignores direction. For example, a speedometer in a car reads instantaneous speed.

Hint

Distinguish between a vector and its magnitude. Velocity is a vector with direction; speed is its magnitude.

Question Info

Course: PHY 101
Topic: Kinematics in One Dimension
Type: Objective
Difficulty: Not specified
Question 595 of 1250
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