An object travels North at 1 m/s for 3 s and then travels South at 2 m/s for 4 s. What are the object's average speed and velocity?

↳Redirected from "What is an application of nuclear chemistry in medicine?"
1 Answer
Sunayan S
Sep 19, 2017

See below....

Explanation:

As the object goes through north,he overcame the distance (1×3)=3m
As the object goes through south, he overcame (4×2)=8m
Hence,its net displacement is (8-3)=5m by south.
Its average speed is (distance covered/time)=(8+3)/(3+4)=1.57ms^-1
and average velocity is(displacement/time) =5/(3+4)=0.71ms^-1

Related questions
See all questions in Displacement and Velocity
Impact of this question
1426 views around the world
You can reuse this answer
Creative Commons License