CBSE Class 9 Answered
SPEED AND VELOCITY
Asked by HARSHIT SINHA | 22 May, 2012, 03:45: PM
Expert Answer
Speed is the rate of motion, or the rate of change of position. It is expressed as distance moved (d) per unit of time(t). Speed is a scalar quantity with dimensions distance/time. Speed is measured in the same physical units of measurement as velocity, but does not contain an element of direction. Speed is thus the magnitude component of velocity. Velocity contains both the magnitude and direction components.
The difference between speed and velocity is that velocity is speed with a direction vector associated with it. It's that direction vector that makes them different. Let's back up a bit and review.
Speed is displacement (distance traveled) per unit time. Velocity is displacement (distance traveled) per unit time in a given direction. The "directionallity" associated with velocity makes it a vector quantity, while speed is a scalar quantity.
Speed is displacement (distance traveled) per unit time. Velocity is displacement (distance traveled) per unit time in a given direction. The "directionallity" associated with velocity makes it a vector quantity, while speed is a scalar quantity.
Answered by | 23 May, 2012, 10:45: AM
Application Videos
Concept Videos
CBSE 9 - Physics
Asked by mailtoparvathyprajith | 06 Feb, 2024, 09:50: PM
ANSWERED BY EXPERT
CBSE 9 - Physics
Asked by mailtoparvathyprajith | 06 Feb, 2024, 09:10: PM
ANSWERED BY EXPERT
CBSE 9 - Physics
Asked by sapnamantri05 | 24 Nov, 2023, 04:54: PM
ANSWERED BY EXPERT
CBSE 9 - Physics
Asked by ashrithpandu84 | 09 Oct, 2023, 08:09: PM
ANSWERED BY EXPERT
CBSE 9 - Physics
Asked by janhavisoni2099 | 02 Oct, 2023, 05:20: PM
ANSWERED BY EXPERT
CBSE 9 - Physics
Asked by durgesh21332 | 06 Sep, 2023, 06:17: PM
ANSWERED BY EXPERT
CBSE 9 - Physics
Asked by sagrawal0081 | 18 Aug, 2023, 05:04: PM
ANSWERED BY EXPERT
CBSE 9 - Physics
Asked by ketkiparasgandhi | 05 Jul, 2023, 08:02: PM
ANSWERED BY EXPERT
CBSE 9 - Physics
Asked by leena3732 | 15 Jun, 2023, 09:42: AM
ANSWERED BY EXPERT