What is the speed of an object that travels from ( 1,-4,6) (1,4,6) to ( 0,-9,2) (0,9,2) over 3 s3s?

1 Answer
Mar 4, 2016

v=sqrt42/3 " "m/sv=423 ms

Explanation:

"distance between the given points is: "Delta s=sqrt(1^2+5^2+4^2)
Delta s=sqrt(1+25+16)=sqrt 42 " units"
v=(Delta s)/(Delta t)
v=sqrt42/3 " "m/s