1.0336 because you multiply 10.44 by .144
The anwser is 12 hope it helps you
Unit vector along the direction v = <3,1,-4> is :
So, unit vector opposing the is :
so, vector of magnitude 3 units in opposite direction from v is :
Hence, this is the required solution.
The train travels at 5.5km per hour.
We know that in x hours it will advance by x*5.5 km.
Hence we need to solve x*5.5=82.5, hence x=82.5/5.5=15
It will take 5 hours