Westonci.ca is the Q&A platform that connects you with experts who provide accurate and detailed answers. Our Q&A platform provides quick and trustworthy answers to your questions from experienced professionals in different areas of expertise. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

17.2.3 Quiz: Understanding Quantities
Question 5 of 10
Which quantity is scalar?
A. 14 m/s² east
B. 25 cm/s to the left
C. 10 miles/hr south
D. 14 m/s
SUBMIT


Sagot :

To determine which of the given quantities is a scalar, let's first understand what a scalar quantity is. A scalar quantity has only magnitude and no specific direction. Examples of scalar quantities include speed, distance, mass, and temperature.

Now, let's examine each option:

A. 14 m/s² east
- This quantity includes both magnitude (14 m/s²) and a direction (east), making it a vector quantity.

B. 25 cm/s to the left
- This quantity includes both magnitude (25 cm/s) and a direction (to the left), making it a vector quantity.

C. 10 miles/hr south
- This quantity includes both magnitude (10 miles/hr) and a direction (south), making it a vector quantity.

D. 14 m/s
- This quantity includes only the magnitude (14 m/s) without specifying any direction, making it a scalar quantity.

Based on the definitions and the given options, the correct answer is:

D. 14 m/s