उत तर:
# v = sqrt 6 "" "इक ई" / s #
स पष ट करण:
# P_1 (8,4,1) "" P_2 (6,0,2) #
#P_ "1x" = 8 "" P_ "2x" = 6 "" ड ल ट P_x = 6-8 = -2 #
#P_ "1y" = 4 "" P_ "2y" = 0 "" ड ल ट P_y = 0-4 = -4 #
#P_ "1z" = 1 "" P_ "2z" = 2 "" ड ल ट P_ z = 2-1 = 2 #
# "P_1" और "P_2" क ब द क ब च क द र ह: "#
# ड ल ट x = sqrt ((ड ल ट P_x) ^ 2 + (ड ल ट P_y) ^ 2 + (ड ल ट P_z) ^ 2) #
# ड ल ट x = sqrt ((- 2) ^ 2 + (- 4) ^ 2 + 2 ^ 2) = sqrt (4 + 16 + 4) = sqrt24 #
# v = (ड ल ट x) / t #
# v = sqrt 24/2 #
# v = sqrt (4 * 6) / 2 #
# V = (रद द (2) * sqrt6) / रद द (2) #
# v = sqrt 6 "" "इक ई" / s #
