What is the speed of an object that travels from ( 8,-8,2) (8,−8,2) to ( -5 , -3,-7 ) (−5,−3,−7) over 2 s2s?

1 Answer
ali ergin
Feb 5, 2016

v=8,2925v=8,2925

Explanation:

P_1:(8,-8,2) " point of starting"P1:(8,−8,2) point of starting
P_2:(-5,-3,-7) " point of ending"P2:(−5,−3,−7) point of ending
Delta x=P_(2x)-P_(1x)=-5-8=-13
Delta y=P_(2y)-P_(1y)=-3+8=5
Delta z=P_(2z)-P_(1z)=-7-2=-9
"distance between two point is given by:"
s=(Delta x_x^2+ Delta _y^2+ Delta_z^2)^(1/2)
s=(169+25+81)^(1/2)
s=(275)^(1/2)
s=16,585
speed=("distance")/("elapsed time")
v=(16,585)/2
v=8,2925

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