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

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

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Answer 1 · 2016-02-14T13:03:31

$v=sqrt 10$

Explanation:

$"distance between two point is given as:"$
$x=sqrt(Delta x^2+Delta y^2+ Delta z^2$
$Delta x=x_2-x_1=-3+1=-2$
$Delta y=y_2-y_1=4-7=-3$
$Delta z=z_2-z_1=-3-2$ =-5
$x=sqrt((-2)^2⁺(-3)^2+(-5)^2)$
$x=sqrt (4+9+25)$
$x=sqrt40$
$v=x/t$
$v=sqrt 40/2$
$v=sqrt (4*10)/2=2*sqrt 10/2$
$v=sqrt 10$

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

1 Answer

Explanation:

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Science

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

1 Answer

Explanation:

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