What is the speed of an object that travels from $( -4,6,1)$ to $( 9,3,7 )$ over $2 s$ ?

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Answer 1 · 2018-06-21T07:54:26

The speed is $=7.31ms^-1$

The speed is

$v=d/t$

The distance is

$d=sqrt((9-(-4))^2+(3-6)^2+(7-1)^2)$

$=sqrt(13^2+3^2+6^2)$

$=sqrt(214)$

$=14.63m$

The speed is

$v=14.63/2=7.31ms^-1$

What is the speed of an object that travels from ( -4,6,1) ( -4,6,1) to ( 9,3,7 ) ( 9,3,7 ) over 2 s2 s?