Question

two motor cars A and B start simultaneously from same point on two straight roads inclined at 60° to one another with velocities of 30 km/hr and 40 km/hour respectively the velocity of A with respect to B will be equal to
a. 10√3
b. 10√13
c. 5√3​

Answer 1

see fig

find resultant of va and -vb..

this is the ans