A) 100km
B) 120km
C) 140 km
D) Not possible to determine
Correct Answer: A
Solution :
; A\[\equiv \] Initial position D\[\equiv \] Final postion \[{{\left( AD \right)}^{2}}={{\left( AE \right)}^{2\text{ }}}+\text{ }{{\left( DE \right)}^{2}}\] \[={{\left( 80 \right)}^{2}}+{{\left( 60 \right)}^{2}}=\text{ }6400+3600=10000\] AD=100kmYou need to login to perform this action.
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