उत तर:
# 5.09ms ^ (- 1) #
स पष ट करण:
# "स प ड" = "द र " / "ट इम" #
# "ट इम" = 3s #
# "द र " = sqrt ((Deltax) ^ 2 + (Deltay) ^ 2 + (Deltaz) ^ 2) #
# Deltax = -9 - (- 9) = - 9 + 9 = 0 #
# Deltay = -9-4 = -13 #
# Deltaz = 2 - (- 6) = 2 + 6 = 8 #
# "द र " = sqrt (0 ^ 2 + (- 13) ^ 2 + 8 ^ 2) = sqrt (169 + 64) = sqrt (233) #
# "स प ड" = sqrt (233) /3 ^ (- 1) #