Hi

Let the North be represented by Y-axis. The

when the car turns left, it moves along the -ve

x-axis, towards West.

Let

vl =50j kmph and, v2 = —50i kmph

Change in velocity is =

v2—vl = —50i — 507 kmph

Magnitude of change in velocity is

/507 + 50? = 50/2

The direction of the change in velocity =

Southwest, 45 deg. from South towards West.